Home / 125,212,964.60-187,819,446.90-76,840,023.80

Finding the Fourth Proportional to 125,212,964.60, 187,819,446.90 and 76,840,023.80

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Solution

The fourth proportional to 125,212,964.60, 187,819,446.90 and 76,840,023.80 is: 115,260,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,212,964.60 : 187,819,446.90 = 76,840,023.80 : x
  2. Step 2: Convert to fraction form
    125,212,964.60/187,819,446.90 = 76,840,023.80/x
  3. Step 3: Cross multiply
    125,212,964.60x = 187,819,446.90 × 76,840,023.80
  4. Step 4: Simplify right side
    125,212,964.60x = 14,432,050,769,898,836
  5. Step 5: Solve for x
    x = 14,432,050,769,898,836/125,212,964.60
  6. Step 6: Final answer
    x = 115,260,035.70

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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.