Home / 921,286,699.92-1,381,930,049.88-307,870,925.70

Finding the Fourth Proportional to 921,286,699.92, 1,381,930,049.88 and 307,870,925.70

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Solution

The fourth proportional to 921,286,699.92, 1,381,930,049.88 and 307,870,925.70 is: 461,806,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,286,699.92 : 1,381,930,049.88 = 307,870,925.70 : x
  2. Step 2: Convert to fraction form
    921,286,699.92/1,381,930,049.88 = 307,870,925.70/x
  3. Step 3: Cross multiply
    921,286,699.92x = 1,381,930,049.88 × 307,870,925.70
  4. Step 4: Simplify right side
    921,286,699.92x = 425,456,083,709,202,816
  5. Step 5: Solve for x
    x = 425,456,083,709,202,816/921,286,699.92
  6. Step 6: Final answer
    x = 461,806,388.55

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Double scale
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Similar ratio
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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.