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Finding the Third Proportional to 72,712,236 and 108,810,729

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Solution

The third proportional to 72,712,236 and 108,810,729 is: 162,830,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,712,236 : 108,810,729 = 108,810,729 : x
  2. Step 2: Convert to fraction form
    72,712,236/108,810,729 = 108,810,729/x
  3. Step 3: Cross multiply
    72,712,236x = 108,810,729 × 108,810,729
  4. Step 4: Simplify right side
    72,712,236x = 11,839,774,745,511,440
  5. Step 5: Solve for x
    x = 11,839,774,745,511,440/72,712,236
  6. Step 6: Final answer
    x = 162,830,568.79

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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.