Home / 12,657,817.13-17,464,243.89-7,948,720.44

Finding the Fourth Proportional to 12,657,817.13, 17,464,243.89 and 7,948,720.44

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Solution

The fourth proportional to 12,657,817.13, 17,464,243.89 and 7,948,720.44 is: 10,967,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657,817.13 : 17,464,243.89 = 7,948,720.44 : x
  2. Step 2: Convert to fraction form
    12,657,817.13/17,464,243.89 = 7,948,720.44/x
  3. Step 3: Cross multiply
    12,657,817.13x = 17,464,243.89 × 7,948,720.44
  4. Step 4: Simplify right side
    12,657,817.13x = 138,818,392,377,588.12
  5. Step 5: Solve for x
    x = 138,818,392,377,588.12/12,657,817.13
  6. Step 6: Final answer
    x = 10,967,008.85

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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.