Home / 156,558,631.89-216,044,992.68-86,948,496.81

Finding the Fourth Proportional to 156,558,631.89, 216,044,992.68 and 86,948,496.81

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Solution

The fourth proportional to 156,558,631.89, 216,044,992.68 and 86,948,496.81 is: 119,985,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,558,631.89 : 216,044,992.68 = 86,948,496.81 : x
  2. Step 2: Convert to fraction form
    156,558,631.89/216,044,992.68 = 86,948,496.81/x
  3. Step 3: Cross multiply
    156,558,631.89x = 216,044,992.68 × 86,948,496.81
  4. Step 4: Simplify right side
    156,558,631.89x = 18,784,787,356,853,456
  5. Step 5: Solve for x
    x = 18,784,787,356,853,456/156,558,631.89
  6. Step 6: Final answer
    x = 119,985,638.16

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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.