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Finding the Third Proportional to 72,813,176 and 156,432,040

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Solution

The third proportional to 72,813,176 and 156,432,040 is: 336,079,051.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,813,176 : 156,432,040 = 156,432,040 : x
  2. Step 2: Convert to fraction form
    72,813,176/156,432,040 = 156,432,040/x
  3. Step 3: Cross multiply
    72,813,176x = 156,432,040 × 156,432,040
  4. Step 4: Simplify right side
    72,813,176x = 24,470,983,138,561,600
  5. Step 5: Solve for x
    x = 24,470,983,138,561,600/72,813,176
  6. Step 6: Final answer
    x = 336,079,051.66

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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.