Home / 13,101,663.29-18,080,053.16-7,141,121.45

Finding the Fourth Proportional to 13,101,663.29, 18,080,053.16 and 7,141,121.45

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Solution

The fourth proportional to 13,101,663.29, 18,080,053.16 and 7,141,121.45 is: 9,854,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,663.29 : 18,080,053.16 = 7,141,121.45 : x
  2. Step 2: Convert to fraction form
    13,101,663.29/18,080,053.16 = 7,141,121.45/x
  3. Step 3: Cross multiply
    13,101,663.29x = 18,080,053.16 × 7,141,121.45
  4. Step 4: Simplify right side
    13,101,663.29x = 129,111,855,311,910.42
  5. Step 5: Solve for x
    x = 129,111,855,311,910.42/13,101,663.29
  6. Step 6: Final answer
    x = 9,854,615.59

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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.