Home / 20,761,337.80-31,142,006.70-6,384,382.53

Finding the Fourth Proportional to 20,761,337.80, 31,142,006.70 and 6,384,382.53

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Solution

The fourth proportional to 20,761,337.80, 31,142,006.70 and 6,384,382.53 is: 9,576,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,337.80 : 31,142,006.70 = 6,384,382.53 : x
  2. Step 2: Convert to fraction form
    20,761,337.80/31,142,006.70 = 6,384,382.53/x
  3. Step 3: Cross multiply
    20,761,337.80x = 31,142,006.70 × 6,384,382.53
  4. Step 4: Simplify right side
    20,761,337.80x = 198,822,483,524,622.97
  5. Step 5: Solve for x
    x = 198,822,483,524,622.97/20,761,337.80
  6. Step 6: Final answer
    x = 9,576,573.80

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1.5x scale

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.