Home / 400,015,739,489.70-552,022,129,041.63-217,112,878,842.62

Finding the Fourth Proportional to 400,015,739,489.70, 552,022,129,041.63 and 217,112,878,842.62

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Solution

The fourth proportional to 400,015,739,489.70, 552,022,129,041.63 and 217,112,878,842.62 is: 299,615,994,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015,739,489.70 : 552,022,129,041.63 = 217,112,878,842.62 : x
  2. Step 2: Convert to fraction form
    400,015,739,489.70/552,022,129,041.63 = 217,112,878,842.62/x
  3. Step 3: Cross multiply
    400,015,739,489.70x = 552,022,129,041.63 × 217,112,878,842.62
  4. Step 4: Simplify right side
    400,015,739,489.70x = 119,851,113,621,060,551,966,720
  5. Step 5: Solve for x
    x = 119,851,113,621,060,551,966,720/400,015,739,489.70
  6. Step 6: Final answer
    x = 299,615,994,545.50

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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.