Home / 20,438,191.98-30,527,000.10-18,489,928.68

Finding the Fourth Proportional to 20,438,191.98, 30,527,000.10 and 18,489,928.68

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Solution

The fourth proportional to 20,438,191.98, 30,527,000.10 and 18,489,928.68 is: 27,617,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438,191.98 : 30,527,000.10 = 18,489,928.68 : x
  2. Step 2: Convert to fraction form
    20,438,191.98/30,527,000.10 = 18,489,928.68/x
  3. Step 3: Cross multiply
    20,438,191.98x = 30,527,000.10 × 18,489,928.68
  4. Step 4: Simplify right side
    20,438,191.98x = 564,442,054,663,352.88
  5. Step 5: Solve for x
    x = 564,442,054,663,352.88/20,438,191.98
  6. Step 6: Final answer
    x = 27,617,024.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.