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Finding the Fourth Proportional to 18,377,260.80, 27,523,900.80 and 10,818,988.80

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Solution

The fourth proportional to 18,377,260.80, 27,523,900.80 and 10,818,988.80 is: 16,203,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377,260.80 : 27,523,900.80 = 10,818,988.80 : x
  2. Step 2: Convert to fraction form
    18,377,260.80/27,523,900.80 = 10,818,988.80/x
  3. Step 3: Cross multiply
    18,377,260.80x = 27,523,900.80 × 10,818,988.80
  4. Step 4: Simplify right side
    18,377,260.80x = 297,780,774,487,511.06
  5. Step 5: Solve for x
    x = 297,780,774,487,511.06/18,377,260.80
  6. Step 6: Final answer
    x = 16,203,762.78

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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.