Home / 13,139,148.18-18,000,331.80-12,647,910.62

Finding the Fourth Proportional to 13,139,148.18, 18,000,331.80 and 12,647,910.62

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Solution

The fourth proportional to 13,139,148.18, 18,000,331.80 and 12,647,910.62 is: 17,327,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139,148.18 : 18,000,331.80 = 12,647,910.62 : x
  2. Step 2: Convert to fraction form
    13,139,148.18/18,000,331.80 = 12,647,910.62/x
  3. Step 3: Cross multiply
    13,139,148.18x = 18,000,331.80 × 12,647,910.62
  4. Step 4: Simplify right side
    13,139,148.18x = 227,666,587,736,743.72
  5. Step 5: Solve for x
    x = 227,666,587,736,743.72/13,139,148.18
  6. Step 6: Final answer
    x = 17,327,347.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.