Home / 215,605,385.60-323,408,078.40-86,148,982.40

Finding the Fourth Proportional to 215,605,385.60, 323,408,078.40 and 86,148,982.40

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Solution

The fourth proportional to 215,605,385.60, 323,408,078.40 and 86,148,982.40 is: 129,223,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,605,385.60 : 323,408,078.40 = 86,148,982.40 : x
  2. Step 2: Convert to fraction form
    215,605,385.60/323,408,078.40 = 86,148,982.40/x
  3. Step 3: Cross multiply
    215,605,385.60x = 323,408,078.40 × 86,148,982.40
  4. Step 4: Simplify right side
    215,605,385.60x = 27,861,276,854,099,420
  5. Step 5: Solve for x
    x = 27,861,276,854,099,420/215,605,385.60
  6. Step 6: Final answer
    x = 129,223,473.60

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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.