Home / 15,606,959.52-21,538,440.80-8,731,031.52

Finding the Fourth Proportional to 15,606,959.52, 21,538,440.80 and 8,731,031.52

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Solution

The fourth proportional to 15,606,959.52, 21,538,440.80 and 8,731,031.52 is: 12,049,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606,959.52 : 21,538,440.80 = 8,731,031.52 : x
  2. Step 2: Convert to fraction form
    15,606,959.52/21,538,440.80 = 8,731,031.52/x
  3. Step 3: Cross multiply
    15,606,959.52x = 21,538,440.80 × 8,731,031.52
  4. Step 4: Simplify right side
    15,606,959.52x = 188,052,805,516,454
  5. Step 5: Solve for x
    x = 188,052,805,516,454/15,606,959.52
  6. Step 6: Final answer
    x = 12,049,291.55

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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.