Home / 20,808,005.10-31,210,452.45-8,674,334.70

Finding the Fourth Proportional to 20,808,005.10, 31,210,452.45 and 8,674,334.70

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Solution

The fourth proportional to 20,808,005.10, 31,210,452.45 and 8,674,334.70 is: 13,010,853.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,005.10 : 31,210,452.45 = 8,674,334.70 : x
  2. Step 2: Convert to fraction form
    20,808,005.10/31,210,452.45 = 8,674,334.70/x
  3. Step 3: Cross multiply
    20,808,005.10x = 31,210,452.45 × 8,674,334.70
  4. Step 4: Simplify right side
    20,808,005.10x = 270,729,910,689,735
  5. Step 5: Solve for x
    x = 270,729,910,689,735/20,808,005.10
  6. Step 6: Final answer
    x = 13,010,853.73

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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.