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Finding the Third Proportional to 28,071,870 and 42,315,171

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Solution

The third proportional to 28,071,870 and 42,315,171 is: 63,785,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071,870 : 42,315,171 = 42,315,171 : x
  2. Step 2: Convert to fraction form
    28,071,870/42,315,171 = 42,315,171/x
  3. Step 3: Cross multiply
    28,071,870x = 42,315,171 × 42,315,171
  4. Step 4: Simplify right side
    28,071,870x = 1,790,573,696,759,241
  5. Step 5: Solve for x
    x = 1,790,573,696,759,241/28,071,870
  6. Step 6: Final answer
    x = 63,785,337.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.