Home / 921,286,703.92-1,381,930,055.88-307,870,929.70

Finding the Fourth Proportional to 921,286,703.92, 1,381,930,055.88 and 307,870,929.70

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Solution

The fourth proportional to 921,286,703.92, 1,381,930,055.88 and 307,870,929.70 is: 461,806,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,286,703.92 : 1,381,930,055.88 = 307,870,929.70 : x
  2. Step 2: Convert to fraction form
    921,286,703.92/1,381,930,055.88 = 307,870,929.70/x
  3. Step 3: Cross multiply
    921,286,703.92x = 1,381,930,055.88 × 307,870,929.70
  4. Step 4: Simplify right side
    921,286,703.92x = 425,456,091,084,148,544
  5. Step 5: Solve for x
    x = 425,456,091,084,148,544/921,286,703.92
  6. Step 6: Final answer
    x = 461,806,394.55

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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.