Home / 156,144,225.71-215,480,279.54-86,530,761.83

Finding the Fourth Proportional to 156,144,225.71, 215,480,279.54 and 86,530,761.83

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Solution

The fourth proportional to 156,144,225.71, 215,480,279.54 and 86,530,761.83 is: 119,413,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,144,225.71 : 215,480,279.54 = 86,530,761.83 : x
  2. Step 2: Convert to fraction form
    156,144,225.71/215,480,279.54 = 86,530,761.83/x
  3. Step 3: Cross multiply
    156,144,225.71x = 215,480,279.54 × 86,530,761.83
  4. Step 4: Simplify right side
    156,144,225.71x = 18,645,672,748,692,588
  5. Step 5: Solve for x
    x = 18,645,672,748,692,588/156,144,225.71
  6. Step 6: Final answer
    x = 119,413,142.97

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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.