Home / 400,015,739,482.04-552,022,129,031.10-217,112,878,834.98

Finding the Fourth Proportional to 400,015,739,482.04, 552,022,129,031.10 and 217,112,878,834.98

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Solution

The fourth proportional to 400,015,739,482.04, 552,022,129,031.10 and 217,112,878,834.98 is: 299,615,994,534.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015,739,482.04 : 552,022,129,031.10 = 217,112,878,834.98 : x
  2. Step 2: Convert to fraction form
    400,015,739,482.04/552,022,129,031.10 = 217,112,878,834.98/x
  3. Step 3: Cross multiply
    400,015,739,482.04x = 552,022,129,031.10 × 217,112,878,834.98
  4. Step 4: Simplify right side
    400,015,739,482.04x = 119,851,113,614,556,914,515,968
  5. Step 5: Solve for x
    x = 119,851,113,614,556,914,515,968/400,015,739,482.04
  6. Step 6: Final answer
    x = 299,615,994,534.98

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Double scale
Find fourth proportional to 400,015,739,483.04, 552,022,129,032.48 and 217,112,878,835.98
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.