Home / 672,346,531.28-927,839,451.25-375,007,938.66

Finding the Fourth Proportional to 672,346,531.28, 927,839,451.25 and 375,007,938.66

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Solution

The fourth proportional to 672,346,531.28, 927,839,451.25 and 375,007,938.66 is: 517,511,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,346,531.28 : 927,839,451.25 = 375,007,938.66 : x
  2. Step 2: Convert to fraction form
    672,346,531.28/927,839,451.25 = 375,007,938.66/x
  3. Step 3: Cross multiply
    672,346,531.28x = 927,839,451.25 × 375,007,938.66
  4. Step 4: Simplify right side
    672,346,531.28x = 347,947,160,020,688,064
  5. Step 5: Solve for x
    x = 347,947,160,020,688,064/672,346,531.28
  6. Step 6: Final answer
    x = 517,511,645.90

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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.