Home / 215,703,897.60-323,555,846.40-86,331,475.20

Finding the Fourth Proportional to 215,703,897.60, 323,555,846.40 and 86,331,475.20

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Solution

The fourth proportional to 215,703,897.60, 323,555,846.40 and 86,331,475.20 is: 129,497,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,703,897.60 : 323,555,846.40 = 86,331,475.20 : x
  2. Step 2: Convert to fraction form
    215,703,897.60/323,555,846.40 = 86,331,475.20/x
  3. Step 3: Cross multiply
    215,703,897.60x = 323,555,846.40 × 86,331,475.20
  4. Step 4: Simplify right side
    215,703,897.60x = 27,933,053,529,296,608
  5. Step 5: Solve for x
    x = 27,933,053,529,296,608/215,703,897.60
  6. Step 6: Final answer
    x = 129,497,212.80

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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.