Home / 80,514,106.20-120,771,159.30-51,792,672.60

Finding the Fourth Proportional to 80,514,106.20, 120,771,159.30 and 51,792,672.60

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Solution

The fourth proportional to 80,514,106.20, 120,771,159.30 and 51,792,672.60 is: 77,689,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,514,106.20 : 120,771,159.30 = 51,792,672.60 : x
  2. Step 2: Convert to fraction form
    80,514,106.20/120,771,159.30 = 51,792,672.60/x
  3. Step 3: Cross multiply
    80,514,106.20x = 120,771,159.30 × 51,792,672.60
  4. Step 4: Simplify right side
    80,514,106.20x = 6,255,061,113,147,345
  5. Step 5: Solve for x
    x = 6,255,061,113,147,345/80,514,106.20
  6. Step 6: Final answer
    x = 77,689,008.90

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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.