Home / 787,509,008.40-1,181,515,864.72-551,404,470

Finding the Fourth Proportional to 787,509,008.40, 1,181,515,864.72 and 551,404,470

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Solution

The fourth proportional to 787,509,008.40, 1,181,515,864.72 and 551,404,470 is: 827,283,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,509,008.40 : 1,181,515,864.72 = 551,404,470 : x
  2. Step 2: Convert to fraction form
    787,509,008.40/1,181,515,864.72 = 551,404,470/x
  3. Step 3: Cross multiply
    787,509,008.40x = 1,181,515,864.72 × 551,404,470
  4. Step 4: Simplify right side
    787,509,008.40x = 651,493,129,182,523,264
  5. Step 5: Solve for x
    x = 651,493,129,182,523,264/787,509,008.40
  6. Step 6: Final answer
    x = 827,283,398.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.