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Finding the Third Proportional to 18,929,664 and 28,385,280

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Solution

The third proportional to 18,929,664 and 28,385,280 is: 42,564,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929,664 : 28,385,280 = 28,385,280 : x
  2. Step 2: Convert to fraction form
    18,929,664/28,385,280 = 28,385,280/x
  3. Step 3: Cross multiply
    18,929,664x = 28,385,280 × 28,385,280
  4. Step 4: Simplify right side
    18,929,664x = 805,724,120,678,400
  5. Step 5: Solve for x
    x = 805,724,120,678,400/18,929,664
  6. Step 6: Final answer
    x = 42,564,100.49

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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.