Home / 103,331,739.78-155,016,680.28-42,752,189.70

Finding the Fourth Proportional to 103,331,739.78, 155,016,680.28 and 42,752,189.70

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Solution

The fourth proportional to 103,331,739.78, 155,016,680.28 and 42,752,189.70 is: 64,136,174.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,331,739.78 : 155,016,680.28 = 42,752,189.70 : x
  2. Step 2: Convert to fraction form
    103,331,739.78/155,016,680.28 = 42,752,189.70/x
  3. Step 3: Cross multiply
    103,331,739.78x = 155,016,680.28 × 42,752,189.70
  4. Step 4: Simplify right side
    103,331,739.78x = 6,627,302,521,994,810
  5. Step 5: Solve for x
    x = 6,627,302,521,994,810/103,331,739.78
  6. Step 6: Final answer
    x = 64,136,174.77

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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.