Home / 20,179,454.70-30,348,898.20-18,106,834.80

Finding the Fourth Proportional to 20,179,454.70, 30,348,898.20 and 18,106,834.80

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Solution

The fourth proportional to 20,179,454.70, 30,348,898.20 and 18,106,834.80 is: 27,231,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,454.70 : 30,348,898.20 = 18,106,834.80 : x
  2. Step 2: Convert to fraction form
    20,179,454.70/30,348,898.20 = 18,106,834.80/x
  3. Step 3: Cross multiply
    20,179,454.70x = 30,348,898.20 × 18,106,834.80
  4. Step 4: Simplify right side
    20,179,454.70x = 549,522,486,069,417.38
  5. Step 5: Solve for x
    x = 549,522,486,069,417.38/20,179,454.70
  6. Step 6: Final answer
    x = 27,231,780.75

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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.