Home / 81,394,763.70-122,092,145.55-30,266,202.90

Finding the Fourth Proportional to 81,394,763.70, 122,092,145.55 and 30,266,202.90

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Solution

The fourth proportional to 81,394,763.70, 122,092,145.55 and 30,266,202.90 is: 45,399,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,394,763.70 : 122,092,145.55 = 30,266,202.90 : x
  2. Step 2: Convert to fraction form
    81,394,763.70/122,092,145.55 = 30,266,202.90/x
  3. Step 3: Cross multiply
    81,394,763.70x = 122,092,145.55 × 30,266,202.90
  4. Step 4: Simplify right side
    81,394,763.70x = 3,695,265,649,712,632
  5. Step 5: Solve for x
    x = 3,695,265,649,712,632/81,394,763.70
  6. Step 6: Final answer
    x = 45,399,304.35

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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.