Home / 215,605,429.60-323,408,144.40-86,149,026.40

Finding the Fourth Proportional to 215,605,429.60, 323,408,144.40 and 86,149,026.40

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Solution

The fourth proportional to 215,605,429.60, 323,408,144.40 and 86,149,026.40 is: 129,223,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,605,429.60 : 323,408,144.40 = 86,149,026.40 : x
  2. Step 2: Convert to fraction form
    215,605,429.60/323,408,144.40 = 86,149,026.40/x
  3. Step 3: Cross multiply
    215,605,429.60x = 323,408,144.40 × 86,149,026.40
  4. Step 4: Simplify right side
    215,605,429.60x = 27,861,296,769,890,612
  5. Step 5: Solve for x
    x = 27,861,296,769,890,612/215,605,429.60
  6. Step 6: Final answer
    x = 129,223,539.60

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1.5x scale

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.