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Finding the Third Proportional to 72,643,650 and 156,308,484

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Solution

The third proportional to 72,643,650 and 156,308,484 is: 336,331,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,643,650 : 156,308,484 = 156,308,484 : x
  2. Step 2: Convert to fraction form
    72,643,650/156,308,484 = 156,308,484/x
  3. Step 3: Cross multiply
    72,643,650x = 156,308,484 × 156,308,484
  4. Step 4: Simplify right side
    72,643,650x = 24,432,342,170,378,256
  5. Step 5: Solve for x
    x = 24,432,342,170,378,256/72,643,650
  6. Step 6: Final answer
    x = 336,331,422.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.