Home / 156,337,630.46-215,746,903.59-86,727,422.78

Finding the Fourth Proportional to 156,337,630.46, 215,746,903.59 and 86,727,422.78

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Solution

The fourth proportional to 156,337,630.46, 215,746,903.59 and 86,727,422.78 is: 119,684,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,337,630.46 : 215,746,903.59 = 86,727,422.78 : x
  2. Step 2: Convert to fraction form
    156,337,630.46/215,746,903.59 = 86,727,422.78/x
  3. Step 3: Cross multiply
    156,337,630.46x = 215,746,903.59 × 86,727,422.78
  4. Step 4: Simplify right side
    156,337,630.46x = 18,711,172,921,125,832
  5. Step 5: Solve for x
    x = 18,711,172,921,125,832/156,337,630.46
  6. Step 6: Final answer
    x = 119,684,383.51

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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.