Home / 15,013,748.28-20,718,951.66-8,138,228.52

Finding the Fourth Proportional to 15,013,748.28, 20,718,951.66 and 8,138,228.52

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Solution

The fourth proportional to 15,013,748.28, 20,718,951.66 and 8,138,228.52 is: 11,230,743.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,748.28 : 20,718,951.66 = 8,138,228.52 : x
  2. Step 2: Convert to fraction form
    15,013,748.28/20,718,951.66 = 8,138,228.52/x
  3. Step 3: Cross multiply
    15,013,748.28x = 20,718,951.66 × 8,138,228.52
  4. Step 4: Simplify right side
    15,013,748.28x = 168,615,563,303,913.34
  5. Step 5: Solve for x
    x = 168,615,563,303,913.34/15,013,748.28
  6. Step 6: Final answer
    x = 11,230,743.99

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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.