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Finding the Third Proportional to 89,850,754 and 128,398,807

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Solution

The third proportional to 89,850,754 and 128,398,807 is: 183,484,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,850,754 : 128,398,807 = 128,398,807 : x
  2. Step 2: Convert to fraction form
    89,850,754/128,398,807 = 128,398,807/x
  3. Step 3: Cross multiply
    89,850,754x = 128,398,807 × 128,398,807
  4. Step 4: Simplify right side
    89,850,754x = 16,486,253,639,023,248
  5. Step 5: Solve for x
    x = 16,486,253,639,023,248/89,850,754
  6. Step 6: Final answer
    x = 183,484,866.91

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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.