Home / 79,182,001.20-118,773,001.80-77,906,542.80

Finding the Fourth Proportional to 79,182,001.20, 118,773,001.80 and 77,906,542.80

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Solution

The fourth proportional to 79,182,001.20, 118,773,001.80 and 77,906,542.80 is: 116,859,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182,001.20 : 118,773,001.80 = 77,906,542.80 : x
  2. Step 2: Convert to fraction form
    79,182,001.20/118,773,001.80 = 77,906,542.80/x
  3. Step 3: Cross multiply
    79,182,001.20x = 118,773,001.80 × 77,906,542.80
  4. Step 4: Simplify right side
    79,182,001.20x = 9,253,193,948,216,176
  5. Step 5: Solve for x
    x = 9,253,193,948,216,176/79,182,001.20
  6. Step 6: Final answer
    x = 116,859,814.20

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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.