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Finding the Third Proportional to 8,989,330 and 19,657,574

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Solution

The third proportional to 8,989,330 and 19,657,574 is: 42,986,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989,330 : 19,657,574 = 19,657,574 : x
  2. Step 2: Convert to fraction form
    8,989,330/19,657,574 = 19,657,574/x
  3. Step 3: Cross multiply
    8,989,330x = 19,657,574 × 19,657,574
  4. Step 4: Simplify right side
    8,989,330x = 386,420,215,565,476
  5. Step 5: Solve for x
    x = 386,420,215,565,476/8,989,330
  6. Step 6: Final answer
    x = 42,986,542.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.