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Finding the Third Proportional to 18,720,819 and 28,762,479

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Solution

The third proportional to 18,720,819 and 28,762,479 is: 44,190,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,819 : 28,762,479 = 28,762,479 : x
  2. Step 2: Convert to fraction form
    18,720,819/28,762,479 = 28,762,479/x
  3. Step 3: Cross multiply
    18,720,819x = 28,762,479 × 28,762,479
  4. Step 4: Simplify right side
    18,720,819x = 827,280,198,225,441
  5. Step 5: Solve for x
    x = 827,280,198,225,441/18,720,819
  6. Step 6: Final answer
    x = 44,190,384.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.