Home / 20,764,035.60-31,146,053.40-12,253,981.20

Finding the Fourth Proportional to 20,764,035.60, 31,146,053.40 and 12,253,981.20

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Solution

The fourth proportional to 20,764,035.60, 31,146,053.40 and 12,253,981.20 is: 18,380,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,035.60 : 31,146,053.40 = 12,253,981.20 : x
  2. Step 2: Convert to fraction form
    20,764,035.60/31,146,053.40 = 12,253,981.20/x
  3. Step 3: Cross multiply
    20,764,035.60x = 31,146,053.40 × 12,253,981.20
  4. Step 4: Simplify right side
    20,764,035.60x = 381,663,152,817,796.06
  5. Step 5: Solve for x
    x = 381,663,152,817,796.06/20,764,035.60
  6. Step 6: Final answer
    x = 18,380,971.80

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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.