Home / 13,101,663.78-18,080,053.84-7,141,121.95

Finding the Fourth Proportional to 13,101,663.78, 18,080,053.84 and 7,141,121.95

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Solution

The fourth proportional to 13,101,663.78, 18,080,053.84 and 7,141,121.95 is: 9,854,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,663.78 : 18,080,053.84 = 7,141,121.95 : x
  2. Step 2: Convert to fraction form
    13,101,663.78/18,080,053.84 = 7,141,121.95/x
  3. Step 3: Cross multiply
    13,101,663.78x = 18,080,053.84 × 7,141,121.95
  4. Step 4: Simplify right side
    13,101,663.78x = 129,111,869,334,005.80
  5. Step 5: Solve for x
    x = 129,111,869,334,005.80/13,101,663.78
  6. Step 6: Final answer
    x = 9,854,616.29

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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.