Home / 13,413,742.20-20,120,613.30-9,662,599.80

Finding the Fourth Proportional to 13,413,742.20, 20,120,613.30 and 9,662,599.80

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Solution

The fourth proportional to 13,413,742.20, 20,120,613.30 and 9,662,599.80 is: 14,493,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413,742.20 : 20,120,613.30 = 9,662,599.80 : x
  2. Step 2: Convert to fraction form
    13,413,742.20/20,120,613.30 = 9,662,599.80/x
  3. Step 3: Cross multiply
    13,413,742.20x = 20,120,613.30 × 9,662,599.80
  4. Step 4: Simplify right side
    13,413,742.20x = 194,417,434,048,457.38
  5. Step 5: Solve for x
    x = 194,417,434,048,457.38/13,413,742.20
  6. Step 6: Final answer
    x = 14,493,899.70

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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.