Home / 400,015,739,486.51-552,022,129,037.25-217,112,878,839.42

Finding the Fourth Proportional to 400,015,739,486.51, 552,022,129,037.25 and 217,112,878,839.42

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Solution

The fourth proportional to 400,015,739,486.51, 552,022,129,037.25 and 217,112,878,839.42 is: 299,615,994,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015,739,486.51 : 552,022,129,037.25 = 217,112,878,839.42 : x
  2. Step 2: Convert to fraction form
    400,015,739,486.51/552,022,129,037.25 = 217,112,878,839.42/x
  3. Step 3: Cross multiply
    400,015,739,486.51x = 552,022,129,037.25 × 217,112,878,839.42
  4. Step 4: Simplify right side
    400,015,739,486.51x = 119,851,113,618,343,146,291,200
  5. Step 5: Solve for x
    x = 119,851,113,618,343,146,291,200/400,015,739,486.51
  6. Step 6: Final answer
    x = 299,615,994,541.10

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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.