Home / 118,023,691.80-177,147,512.10-72,674,059.80

Finding the Fourth Proportional to 118,023,691.80, 177,147,512.10 and 72,674,059.80

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Solution

The fourth proportional to 118,023,691.80, 177,147,512.10 and 72,674,059.80 is: 109,080,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,023,691.80 : 177,147,512.10 = 72,674,059.80 : x
  2. Step 2: Convert to fraction form
    118,023,691.80/177,147,512.10 = 72,674,059.80/x
  3. Step 3: Cross multiply
    118,023,691.80x = 177,147,512.10 × 72,674,059.80
  4. Step 4: Simplify right side
    118,023,691.80x = 12,874,028,887,776,622
  5. Step 5: Solve for x
    x = 12,874,028,887,776,622/118,023,691.80
  6. Step 6: Final answer
    x = 109,080,038.86

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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.