Home / 431,487,137.60-647,249,599.20-124,810,251.20

Finding the Fourth Proportional to 431,487,137.60, 647,249,599.20 and 124,810,251.20

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Solution

The fourth proportional to 431,487,137.60, 647,249,599.20 and 124,810,251.20 is: 187,220,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,487,137.60 : 647,249,599.20 = 124,810,251.20 : x
  2. Step 2: Convert to fraction form
    431,487,137.60/647,249,599.20 = 124,810,251.20/x
  3. Step 3: Cross multiply
    431,487,137.60x = 647,249,599.20 × 124,810,251.20
  4. Step 4: Simplify right side
    431,487,137.60x = 80,783,385,065,251,328
  5. Step 5: Solve for x
    x = 80,783,385,065,251,328/431,487,137.60
  6. Step 6: Final answer
    x = 187,220,841.66

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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.