Home / 457,862,316.78-686,797,726.44-130,337,818.44

Finding the Fourth Proportional to 457,862,316.78, 686,797,726.44 and 130,337,818.44

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Solution

The fourth proportional to 457,862,316.78, 686,797,726.44 and 130,337,818.44 is: 195,507,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,862,316.78 : 686,797,726.44 = 130,337,818.44 : x
  2. Step 2: Convert to fraction form
    457,862,316.78/686,797,726.44 = 130,337,818.44/x
  3. Step 3: Cross multiply
    457,862,316.78x = 686,797,726.44 × 130,337,818.44
  4. Step 4: Simplify right side
    457,862,316.78x = 89,515,717,373,741,520
  5. Step 5: Solve for x
    x = 89,515,717,373,741,520/457,862,316.78
  6. Step 6: Final answer
    x = 195,507,937.85

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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.