Home / 12,438,385.32-17,164,216.62-6,856,387.20

Finding the Fourth Proportional to 12,438,385.32, 17,164,216.62 and 6,856,387.20

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Solution

The fourth proportional to 12,438,385.32, 17,164,216.62 and 6,856,387.20 is: 9,461,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,385.32 : 17,164,216.62 = 6,856,387.20 : x
  2. Step 2: Convert to fraction form
    12,438,385.32/17,164,216.62 = 6,856,387.20/x
  3. Step 3: Cross multiply
    12,438,385.32x = 17,164,216.62 × 6,856,387.20
  4. Step 4: Simplify right side
    12,438,385.32x = 117,684,515,131,395.28
  5. Step 5: Solve for x
    x = 117,684,515,131,395.28/12,438,385.32
  6. Step 6: Final answer
    x = 9,461,398.09

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1.5x scale

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.