Home / 15,188,570.32-20,960,067.36-8,219,095.30

Finding the Fourth Proportional to 15,188,570.32, 20,960,067.36 and 8,219,095.30

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Solution

The fourth proportional to 15,188,570.32, 20,960,067.36 and 8,219,095.30 is: 11,342,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,570.32 : 20,960,067.36 = 8,219,095.30 : x
  2. Step 2: Convert to fraction form
    15,188,570.32/20,960,067.36 = 8,219,095.30/x
  3. Step 3: Cross multiply
    15,188,570.32x = 20,960,067.36 × 8,219,095.30
  4. Step 4: Simplify right side
    15,188,570.32x = 172,272,791,126,259.41
  5. Step 5: Solve for x
    x = 172,272,791,126,259.41/15,188,570.32
  6. Step 6: Final answer
    x = 11,342,265.10

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1.5x scale

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.