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Finding the Third Proportional to 8,458,579 and 12,690,461

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Solution

The third proportional to 8,458,579 and 12,690,461 is: 19,039,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,579 : 12,690,461 = 12,690,461 : x
  2. Step 2: Convert to fraction form
    8,458,579/12,690,461 = 12,690,461/x
  3. Step 3: Cross multiply
    8,458,579x = 12,690,461 × 12,690,461
  4. Step 4: Simplify right side
    8,458,579x = 161,047,800,392,521
  5. Step 5: Solve for x
    x = 161,047,800,392,521/8,458,579
  6. Step 6: Final answer
    x = 19,039,581.04

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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.