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Finding the Third Proportional to 8,818,290 and 18,896,280

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Solution

The third proportional to 8,818,290 and 18,896,280 is: 40,491,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818,290 : 18,896,280 = 18,896,280 : x
  2. Step 2: Convert to fraction form
    8,818,290/18,896,280 = 18,896,280/x
  3. Step 3: Cross multiply
    8,818,290x = 18,896,280 × 18,896,280
  4. Step 4: Simplify right side
    8,818,290x = 357,069,397,838,400
  5. Step 5: Solve for x
    x = 357,069,397,838,400/8,818,290
  6. Step 6: Final answer
    x = 40,491,909.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.