Home / 20,509,037.30-30,761,223.15-5,364,499.70

Finding the Fourth Proportional to 20,509,037.30, 30,761,223.15 and 5,364,499.70

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Solution

The fourth proportional to 20,509,037.30, 30,761,223.15 and 5,364,499.70 is: 8,046,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,037.30 : 30,761,223.15 = 5,364,499.70 : x
  2. Step 2: Convert to fraction form
    20,509,037.30/30,761,223.15 = 5,364,499.70/x
  3. Step 3: Cross multiply
    20,509,037.30x = 30,761,223.15 × 5,364,499.70
  4. Step 4: Simplify right side
    20,509,037.30x = 165,018,572,359,808.06
  5. Step 5: Solve for x
    x = 165,018,572,359,808.06/20,509,037.30
  6. Step 6: Final answer
    x = 8,046,139.37

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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.