Home / 278,746,012.73-418,029,505.17-91,957,967.68

Finding the Fourth Proportional to 278,746,012.73, 418,029,505.17 and 91,957,967.68

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Solution

The fourth proportional to 278,746,012.73, 418,029,505.17 and 91,957,967.68 is: 137,907,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746,012.73 : 418,029,505.17 = 91,957,967.68 : x
  2. Step 2: Convert to fraction form
    278,746,012.73/418,029,505.17 = 91,957,967.68/x
  3. Step 3: Cross multiply
    278,746,012.73x = 418,029,505.17 × 91,957,967.68
  4. Step 4: Simplify right side
    278,746,012.73x = 38,441,143,724,664,176
  5. Step 5: Solve for x
    x = 38,441,143,724,664,176/278,746,012.73
  6. Step 6: Final answer
    x = 137,907,420.98

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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.