Home / 15,375,426.76-21,216,465.30-8,498,798.92

Finding the Fourth Proportional to 15,375,426.76, 21,216,465.30 and 8,498,798.92

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Solution

The fourth proportional to 15,375,426.76, 21,216,465.30 and 8,498,798.92 is: 11,727,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375,426.76 : 21,216,465.30 = 8,498,798.92 : x
  2. Step 2: Convert to fraction form
    15,375,426.76/21,216,465.30 = 8,498,798.92/x
  3. Step 3: Cross multiply
    15,375,426.76x = 21,216,465.30 × 8,498,798.92
  4. Step 4: Simplify right side
    15,375,426.76x = 180,314,472,377,857.47
  5. Step 5: Solve for x
    x = 180,314,472,377,857.47/15,375,426.76
  6. Step 6: Final answer
    x = 11,727,445.05

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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.