Home / 20,782,911.30-31,174,366.95-15,744,063.30

Finding the Fourth Proportional to 20,782,911.30, 31,174,366.95 and 15,744,063.30

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Solution

The fourth proportional to 20,782,911.30, 31,174,366.95 and 15,744,063.30 is: 23,616,094.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,782,911.30 : 31,174,366.95 = 15,744,063.30 : x
  2. Step 2: Convert to fraction form
    20,782,911.30/31,174,366.95 = 15,744,063.30/x
  3. Step 3: Cross multiply
    20,782,911.30x = 31,174,366.95 × 15,744,063.30
  4. Step 4: Simplify right side
    20,782,911.30x = 490,811,206,598,227.94
  5. Step 5: Solve for x
    x = 490,811,206,598,227.94/20,782,911.30
  6. Step 6: Final answer
    x = 23,616,094.95

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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.