Home / 99,680,147.40-149,359,257.90-56,420,704.20

Finding the Fourth Proportional to 99,680,147.40, 149,359,257.90 and 56,420,704.20

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Solution

The fourth proportional to 99,680,147.40, 149,359,257.90 and 56,420,704.20 is: 84,539,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680,147.40 : 149,359,257.90 = 56,420,704.20 : x
  2. Step 2: Convert to fraction form
    99,680,147.40/149,359,257.90 = 56,420,704.20/x
  3. Step 3: Cross multiply
    99,680,147.40x = 149,359,257.90 × 56,420,704.20
  4. Step 4: Simplify right side
    99,680,147.40x = 8,426,954,509,507,414
  5. Step 5: Solve for x
    x = 8,426,954,509,507,414/99,680,147.40
  6. Step 6: Final answer
    x = 84,539,948.32

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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.