Home / 12,418,854.90-17,137,993.68-6,986,346.90

Finding the Fourth Proportional to 12,418,854.90, 17,137,993.68 and 6,986,346.90

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Solution

The fourth proportional to 12,418,854.90, 17,137,993.68 and 6,986,346.90 is: 9,641,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418,854.90 : 17,137,993.68 = 6,986,346.90 : x
  2. Step 2: Convert to fraction form
    12,418,854.90/17,137,993.68 = 6,986,346.90/x
  3. Step 3: Cross multiply
    12,418,854.90x = 17,137,993.68 × 6,986,346.90
  4. Step 4: Simplify right side
    12,418,854.90x = 119,731,969,018,487.59
  5. Step 5: Solve for x
    x = 119,731,969,018,487.59/12,418,854.90
  6. Step 6: Final answer
    x = 9,641,144.05

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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.