Home / 72,564,992.70-108,889,479.45-27,131,379.90

Finding the Fourth Proportional to 72,564,992.70, 108,889,479.45 and 27,131,379.90

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Solution

The fourth proportional to 72,564,992.70, 108,889,479.45 and 27,131,379.90 is: 40,712,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,564,992.70 : 108,889,479.45 = 27,131,379.90 : x
  2. Step 2: Convert to fraction form
    72,564,992.70/108,889,479.45 = 27,131,379.90/x
  3. Step 3: Cross multiply
    72,564,992.70x = 108,889,479.45 × 27,131,379.90
  4. Step 4: Simplify right side
    72,564,992.70x = 2,954,321,834,071,193
  5. Step 5: Solve for x
    x = 2,954,321,834,071,193/72,564,992.70
  6. Step 6: Final answer
    x = 40,712,769.67

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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.