Home / 112,752,892.80-169,129,339.20-74,489,140.80

Finding the Fourth Proportional to 112,752,892.80, 169,129,339.20 and 74,489,140.80

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Solution

The fourth proportional to 112,752,892.80, 169,129,339.20 and 74,489,140.80 is: 111,733,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,892.80 : 169,129,339.20 = 74,489,140.80 : x
  2. Step 2: Convert to fraction form
    112,752,892.80/169,129,339.20 = 74,489,140.80/x
  3. Step 3: Cross multiply
    112,752,892.80x = 169,129,339.20 × 74,489,140.80
  4. Step 4: Simplify right side
    112,752,892.80x = 12,598,299,161,079,758
  5. Step 5: Solve for x
    x = 12,598,299,161,079,758/112,752,892.80
  6. Step 6: Final answer
    x = 111,733,711.20

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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.