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Finding the Third Proportional to 77,035,890 and 156,762,195

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Solution

The third proportional to 77,035,890 and 156,762,195 is: 318,999,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,035,890 : 156,762,195 = 156,762,195 : x
  2. Step 2: Convert to fraction form
    77,035,890/156,762,195 = 156,762,195/x
  3. Step 3: Cross multiply
    77,035,890x = 156,762,195 × 156,762,195
  4. Step 4: Simplify right side
    77,035,890x = 24,574,385,781,218,024
  5. Step 5: Solve for x
    x = 24,574,385,781,218,024/77,035,890
  6. Step 6: Final answer
    x = 318,999,180.53

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.