Home / 21,276,148.20-31,904,891.10-8,492,404.20

Finding the Fourth Proportional to 21,276,148.20, 31,904,891.10 and 8,492,404.20

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Solution

The fourth proportional to 21,276,148.20, 31,904,891.10 and 8,492,404.20 is: 12,734,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276,148.20 : 31,904,891.10 = 8,492,404.20 : x
  2. Step 2: Convert to fraction form
    21,276,148.20/31,904,891.10 = 8,492,404.20/x
  3. Step 3: Cross multiply
    21,276,148.20x = 31,904,891.10 × 8,492,404.20
  4. Step 4: Simplify right side
    21,276,148.20x = 270,949,231,178,182.59
  5. Step 5: Solve for x
    x = 270,949,231,178,182.59/21,276,148.20
  6. Step 6: Final answer
    x = 12,734,881.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.