Home / 20,704,715.80-31,057,073.70-7,240,139.80

Finding the Fourth Proportional to 20,704,715.80, 31,057,073.70 and 7,240,139.80

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Solution

The fourth proportional to 20,704,715.80, 31,057,073.70 and 7,240,139.80 is: 10,860,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,715.80 : 31,057,073.70 = 7,240,139.80 : x
  2. Step 2: Convert to fraction form
    20,704,715.80/31,057,073.70 = 7,240,139.80/x
  3. Step 3: Cross multiply
    20,704,715.80x = 31,057,073.70 × 7,240,139.80
  4. Step 4: Simplify right side
    20,704,715.80x = 224,857,555,366,903.25
  5. Step 5: Solve for x
    x = 224,857,555,366,903.25/20,704,715.80
  6. Step 6: Final answer
    x = 10,860,209.70

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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.