Home / 15,118,109.11-20,864,761.78-8,592,719.47

Finding the Fourth Proportional to 15,118,109.11, 20,864,761.78 and 8,592,719.47

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Solution

The fourth proportional to 15,118,109.11, 20,864,761.78 and 8,592,719.47 is: 11,858,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118,109.11 : 20,864,761.78 = 8,592,719.47 : x
  2. Step 2: Convert to fraction form
    15,118,109.11/20,864,761.78 = 8,592,719.47/x
  3. Step 3: Cross multiply
    15,118,109.11x = 20,864,761.78 × 8,592,719.47
  4. Step 4: Simplify right side
    15,118,109.11x = 179,285,044,710,274.12
  5. Step 5: Solve for x
    x = 179,285,044,710,274.12/15,118,109.11
  6. Step 6: Final answer
    x = 11,858,959.57

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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.