Home / 13,651,275.34-18,838,635.92-7,456,320.74

Finding the Fourth Proportional to 13,651,275.34, 18,838,635.92 and 7,456,320.74

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Solution

The fourth proportional to 13,651,275.34, 18,838,635.92 and 7,456,320.74 is: 10,289,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651,275.34 : 18,838,635.92 = 7,456,320.74 : x
  2. Step 2: Convert to fraction form
    13,651,275.34/18,838,635.92 = 7,456,320.74/x
  3. Step 3: Cross multiply
    13,651,275.34x = 18,838,635.92 × 7,456,320.74
  4. Step 4: Simplify right side
    13,651,275.34x = 140,466,911,723,605
  5. Step 5: Solve for x
    x = 140,466,911,723,605/13,651,275.34
  6. Step 6: Final answer
    x = 10,289,654.87

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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.