Home / 156,448,512.64-215,897,321.28-86,834,500.48

Finding the Fourth Proportional to 156,448,512.64, 215,897,321.28 and 86,834,500.48

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Solution

The fourth proportional to 156,448,512.64, 215,897,321.28 and 86,834,500.48 is: 119,830,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,448,512.64 : 215,897,321.28 = 86,834,500.48 : x
  2. Step 2: Convert to fraction form
    156,448,512.64/215,897,321.28 = 86,834,500.48/x
  3. Step 3: Cross multiply
    156,448,512.64x = 215,897,321.28 × 86,834,500.48
  4. Step 4: Simplify right side
    156,448,512.64x = 18,747,336,048,318,876
  5. Step 5: Solve for x
    x = 18,747,336,048,318,876/156,448,512.64
  6. Step 6: Final answer
    x = 119,830,708.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.