Home / 131,706,000.30-197,559,000.45-85,789,497.90

Finding the Fourth Proportional to 131,706,000.30, 197,559,000.45 and 85,789,497.90

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Solution

The fourth proportional to 131,706,000.30, 197,559,000.45 and 85,789,497.90 is: 128,684,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,706,000.30 : 197,559,000.45 = 85,789,497.90 : x
  2. Step 2: Convert to fraction form
    131,706,000.30/197,559,000.45 = 85,789,497.90/x
  3. Step 3: Cross multiply
    131,706,000.30x = 197,559,000.45 × 85,789,497.90
  4. Step 4: Simplify right side
    131,706,000.30x = 16,948,487,454,231,374
  5. Step 5: Solve for x
    x = 16,948,487,454,231,374/131,706,000.30
  6. Step 6: Final answer
    x = 128,684,246.85

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1.5x scale

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.