Home / 20,107,245.60-30,160,868.40-12,454,495.20

Finding the Fourth Proportional to 20,107,245.60, 30,160,868.40 and 12,454,495.20

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Solution

The fourth proportional to 20,107,245.60, 30,160,868.40 and 12,454,495.20 is: 18,681,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107,245.60 : 30,160,868.40 = 12,454,495.20 : x
  2. Step 2: Convert to fraction form
    20,107,245.60/30,160,868.40 = 12,454,495.20/x
  3. Step 3: Cross multiply
    20,107,245.60x = 30,160,868.40 × 12,454,495.20
  4. Step 4: Simplify right side
    20,107,245.60x = 375,638,390,715,631.62
  5. Step 5: Solve for x
    x = 375,638,390,715,631.62/20,107,245.60
  6. Step 6: Final answer
    x = 18,681,742.80

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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.