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Finding the Third Proportional to 178,362,108 and 391,799,331

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Solution

The third proportional to 178,362,108 and 391,799,331 is: 860,646,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,362,108 : 391,799,331 = 391,799,331 : x
  2. Step 2: Convert to fraction form
    178,362,108/391,799,331 = 391,799,331/x
  3. Step 3: Cross multiply
    178,362,108x = 391,799,331 × 391,799,331
  4. Step 4: Simplify right side
    178,362,108x = 153,506,715,772,047,552
  5. Step 5: Solve for x
    x = 153,506,715,772,047,552/178,362,108
  6. Step 6: Final answer
    x = 860,646,453.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.