Home / 613,781,186.58-921,253,839.46-379,904,442.68

Finding the Fourth Proportional to 613,781,186.58, 921,253,839.46 and 379,904,442.68

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Solution

The fourth proportional to 613,781,186.58, 921,253,839.46 and 379,904,442.68 is: 570,216,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,781,186.58 : 921,253,839.46 = 379,904,442.68 : x
  2. Step 2: Convert to fraction form
    613,781,186.58/921,253,839.46 = 379,904,442.68/x
  3. Step 3: Cross multiply
    613,781,186.58x = 921,253,839.46 × 379,904,442.68
  4. Step 4: Simplify right side
    613,781,186.58x = 349,988,426,446,861,504
  5. Step 5: Solve for x
    x = 349,988,426,446,861,504/613,781,186.58
  6. Step 6: Final answer
    x = 570,216,934.14

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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.