Home / 12,656,609.18-17,465,213.87-7,429,829.54

Finding the Fourth Proportional to 12,656,609.18, 17,465,213.87 and 7,429,829.54

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Solution

The fourth proportional to 12,656,609.18, 17,465,213.87 and 7,429,829.54 is: 10,252,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656,609.18 : 17,465,213.87 = 7,429,829.54 : x
  2. Step 2: Convert to fraction form
    12,656,609.18/17,465,213.87 = 7,429,829.54/x
  3. Step 3: Cross multiply
    12,656,609.18x = 17,465,213.87 × 7,429,829.54
  4. Step 4: Simplify right side
    12,656,609.18x = 129,763,561,977,165
  5. Step 5: Solve for x
    x = 129,763,561,977,165/12,656,609.18
  6. Step 6: Final answer
    x = 10,252,632.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.