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Finding the Third Proportional to 89,850,765 and 128,398,825

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Solution

The third proportional to 89,850,765 and 128,398,825 is: 183,484,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,850,765 : 128,398,825 = 128,398,825 : x
  2. Step 2: Convert to fraction form
    89,850,765/128,398,825 = 128,398,825/x
  3. Step 3: Cross multiply
    89,850,765x = 128,398,825 × 128,398,825
  4. Step 4: Simplify right side
    89,850,765x = 16,486,258,261,380,624
  5. Step 5: Solve for x
    x = 16,486,258,261,380,624/89,850,765
  6. Step 6: Final answer
    x = 183,484,895.89

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.