Home / 90,877,732.56-136,215,627.48-69,241,002.84

Finding the Fourth Proportional to 90,877,732.56, 136,215,627.48 and 69,241,002.84

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Solution

The fourth proportional to 90,877,732.56, 136,215,627.48 and 69,241,002.84 is: 103,784,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,877,732.56 : 136,215,627.48 = 69,241,002.84 : x
  2. Step 2: Convert to fraction form
    90,877,732.56/136,215,627.48 = 69,241,002.84/x
  3. Step 3: Cross multiply
    90,877,732.56x = 136,215,627.48 × 69,241,002.84
  4. Step 4: Simplify right side
    90,877,732.56x = 9,431,706,649,195,062
  5. Step 5: Solve for x
    x = 9,431,706,649,195,062/90,877,732.56
  6. Step 6: Final answer
    x = 103,784,572.78

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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.