Home / 15,415,751.08-21,272,020.12-8,538,510.88

Finding the Fourth Proportional to 15,415,751.08, 21,272,020.12 and 8,538,510.88

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Solution

The fourth proportional to 15,415,751.08, 21,272,020.12 and 8,538,510.88 is: 11,782,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415,751.08 : 21,272,020.12 = 8,538,510.88 : x
  2. Step 2: Convert to fraction form
    15,415,751.08/21,272,020.12 = 8,538,510.88/x
  3. Step 3: Cross multiply
    15,415,751.08x = 21,272,020.12 × 8,538,510.88
  4. Step 4: Simplify right side
    15,415,751.08x = 181,631,375,085,146.25
  5. Step 5: Solve for x
    x = 181,631,375,085,146.25/15,415,751.08
  6. Step 6: Final answer
    x = 11,782,194.34

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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.