Home / 20,956,900.12-31,433,139.24-5,605,738.96

Finding the Fourth Proportional to 20,956,900.12, 31,433,139.24 and 5,605,738.96

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Solution

The fourth proportional to 20,956,900.12, 31,433,139.24 and 5,605,738.96 is: 8,408,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,900.12 : 31,433,139.24 = 5,605,738.96 : x
  2. Step 2: Convert to fraction form
    20,956,900.12/31,433,139.24 = 5,605,738.96/x
  3. Step 3: Cross multiply
    20,956,900.12x = 31,433,139.24 × 5,605,738.96
  4. Step 4: Simplify right side
    20,956,900.12x = 176,205,973,272,772.78
  5. Step 5: Solve for x
    x = 176,205,973,272,772.78/20,956,900.12
  6. Step 6: Final answer
    x = 8,408,017.04

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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.