Home / 765,412,644.78-1,147,186,222.18-396,744,346.71

Finding the Fourth Proportional to 765,412,644.78, 1,147,186,222.18 and 396,744,346.71

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Solution

The fourth proportional to 765,412,644.78, 1,147,186,222.18 and 396,744,346.71 is: 594,633,040.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,412,644.78 : 1,147,186,222.18 = 396,744,346.71 : x
  2. Step 2: Convert to fraction form
    765,412,644.78/1,147,186,222.18 = 396,744,346.71/x
  3. Step 3: Cross multiply
    765,412,644.78x = 1,147,186,222.18 × 396,744,346.71
  4. Step 4: Simplify right side
    765,412,644.78x = 455,139,648,273,516,992
  5. Step 5: Solve for x
    x = 455,139,648,273,516,992/765,412,644.78
  6. Step 6: Final answer
    x = 594,633,040.59

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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.