Home / 90,629,171.56-136,038,843.33-80,320,347.96

Finding the Fourth Proportional to 90,629,171.56, 136,038,843.33 and 80,320,347.96

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Solution

The fourth proportional to 90,629,171.56, 136,038,843.33 and 80,320,347.96 is: 120,564,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629,171.56 : 136,038,843.33 = 80,320,347.96 : x
  2. Step 2: Convert to fraction form
    90,629,171.56/136,038,843.33 = 80,320,347.96/x
  3. Step 3: Cross multiply
    90,629,171.56x = 136,038,843.33 × 80,320,347.96
  4. Step 4: Simplify right side
    90,629,171.56x = 10,926,687,232,341,526
  5. Step 5: Solve for x
    x = 10,926,687,232,341,526/90,629,171.56
  6. Step 6: Final answer
    x = 120,564,792.16

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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.