Home / 99,648,091.20-149,472,136.80-90,719,882.40

Finding the Fourth Proportional to 99,648,091.20, 149,472,136.80 and 90,719,882.40

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Solution

The fourth proportional to 99,648,091.20, 149,472,136.80 and 90,719,882.40 is: 136,079,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,091.20 : 149,472,136.80 = 90,719,882.40 : x
  2. Step 2: Convert to fraction form
    99,648,091.20/149,472,136.80 = 90,719,882.40/x
  3. Step 3: Cross multiply
    99,648,091.20x = 149,472,136.80 × 90,719,882.40
  4. Step 4: Simplify right side
    99,648,091.20x = 13,560,094,672,572,714
  5. Step 5: Solve for x
    x = 13,560,094,672,572,714/99,648,091.20
  6. Step 6: Final answer
    x = 136,079,823.60

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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.