Home / 78,192,001.80-117,288,002.70-32,749,057.80

Finding the Fourth Proportional to 78,192,001.80, 117,288,002.70 and 32,749,057.80

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Solution

The fourth proportional to 78,192,001.80, 117,288,002.70 and 32,749,057.80 is: 49,123,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192,001.80 : 117,288,002.70 = 32,749,057.80 : x
  2. Step 2: Convert to fraction form
    78,192,001.80/117,288,002.70 = 32,749,057.80/x
  3. Step 3: Cross multiply
    78,192,001.80x = 117,288,002.70 × 32,749,057.80
  4. Step 4: Simplify right side
    78,192,001.80x = 3,841,071,579,668,856
  5. Step 5: Solve for x
    x = 3,841,071,579,668,856/78,192,001.80
  6. Step 6: Final answer
    x = 49,123,586.70

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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.