Home / 765,412,748.92-1,147,186,377.78-396,744,450.76

Finding the Fourth Proportional to 765,412,748.92, 1,147,186,377.78 and 396,744,450.76

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Solution

The fourth proportional to 765,412,748.92, 1,147,186,377.78 and 396,744,450.76 is: 594,633,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,412,748.92 : 1,147,186,377.78 = 396,744,450.76 : x
  2. Step 2: Convert to fraction form
    765,412,748.92/1,147,186,377.78 = 396,744,450.76/x
  3. Step 3: Cross multiply
    765,412,748.92x = 1,147,186,377.78 × 396,744,450.76
  4. Step 4: Simplify right side
    765,412,748.92x = 455,139,829,371,679,936
  5. Step 5: Solve for x
    x = 455,139,829,371,679,936/765,412,748.92
  6. Step 6: Final answer
    x = 594,633,196.29

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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.