Home / 15,686,959.06-21,648,529.19-8,717,930.47

Finding the Fourth Proportional to 15,686,959.06, 21,648,529.19 and 8,717,930.47

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Solution

The fourth proportional to 15,686,959.06, 21,648,529.19 and 8,717,930.47 is: 12,031,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,959.06 : 21,648,529.19 = 8,717,930.47 : x
  2. Step 2: Convert to fraction form
    15,686,959.06/21,648,529.19 = 8,717,930.47/x
  3. Step 3: Cross multiply
    15,686,959.06x = 21,648,529.19 × 8,717,930.47
  4. Step 4: Simplify right side
    15,686,959.06x = 188,730,372,305,040.88
  5. Step 5: Solve for x
    x = 188,730,372,305,040.88/15,686,959.06
  6. Step 6: Final answer
    x = 12,031,036.20

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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.