Home / 72,580,129.20-108,870,193.80-41,969,127.60

Finding the Fourth Proportional to 72,580,129.20, 108,870,193.80 and 41,969,127.60

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Solution

The fourth proportional to 72,580,129.20, 108,870,193.80 and 41,969,127.60 is: 62,953,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,129.20 : 108,870,193.80 = 41,969,127.60 : x
  2. Step 2: Convert to fraction form
    72,580,129.20/108,870,193.80 = 41,969,127.60/x
  3. Step 3: Cross multiply
    72,580,129.20x = 108,870,193.80 × 41,969,127.60
  4. Step 4: Simplify right side
    72,580,129.20x = 4,569,187,055,428,929
  5. Step 5: Solve for x
    x = 4,569,187,055,428,929/72,580,129.20
  6. Step 6: Final answer
    x = 62,953,691.40

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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.