Home / 765,762,144.31-1,148,932,704.18-299,756,613.49

Finding the Fourth Proportional to 765,762,144.31, 1,148,932,704.18 and 299,756,613.49

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Solution

The fourth proportional to 765,762,144.31, 1,148,932,704.18 and 299,756,613.49 is: 449,748,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,762,144.31 : 1,148,932,704.18 = 299,756,613.49 : x
  2. Step 2: Convert to fraction form
    765,762,144.31/1,148,932,704.18 = 299,756,613.49/x
  3. Step 3: Cross multiply
    765,762,144.31x = 1,148,932,704.18 × 299,756,613.49
  4. Step 4: Simplify right side
    765,762,144.31x = 344,400,176,532,904,768
  5. Step 5: Solve for x
    x = 344,400,176,532,904,768/765,762,144.31
  6. Step 6: Final answer
    x = 449,748,239.83

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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.