Home / 131,345,856.60-197,018,784.90-82,972,915.80

Finding the Fourth Proportional to 131,345,856.60, 197,018,784.90 and 82,972,915.80

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Solution

The fourth proportional to 131,345,856.60, 197,018,784.90 and 82,972,915.80 is: 124,459,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345,856.60 : 197,018,784.90 = 82,972,915.80 : x
  2. Step 2: Convert to fraction form
    131,345,856.60/197,018,784.90 = 82,972,915.80/x
  3. Step 3: Cross multiply
    131,345,856.60x = 197,018,784.90 × 82,972,915.80
  4. Step 4: Simplify right side
    131,345,856.60x = 16,347,223,050,526,012
  5. Step 5: Solve for x
    x = 16,347,223,050,526,012/131,345,856.60
  6. Step 6: Final answer
    x = 124,459,373.70

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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.