Home / 457,965,891.20-686,712,446.40-134,807,772.80

Finding the Fourth Proportional to 457,965,891.20, 686,712,446.40 and 134,807,772.80

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Solution

The fourth proportional to 457,965,891.20, 686,712,446.40 and 134,807,772.80 is: 202,142,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,965,891.20 : 686,712,446.40 = 134,807,772.80 : x
  2. Step 2: Convert to fraction form
    457,965,891.20/686,712,446.40 = 134,807,772.80/x
  3. Step 3: Cross multiply
    457,965,891.20x = 686,712,446.40 × 134,807,772.80
  4. Step 4: Simplify right side
    457,965,891.20x = 92,574,175,453,223,376
  5. Step 5: Solve for x
    x = 92,574,175,453,223,376/457,965,891.20
  6. Step 6: Final answer
    x = 202,142,074.84

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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.