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Finding the Third Proportional to 178,362,175.50 and 391,799,457

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Solution

The third proportional to 178,362,175.50 and 391,799,457 is: 860,646,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,362,175.50 : 391,799,457 = 391,799,457 : x
  2. Step 2: Convert to fraction form
    178,362,175.50/391,799,457 = 391,799,457/x
  3. Step 3: Cross multiply
    178,362,175.50x = 391,799,457 × 391,799,457
  4. Step 4: Simplify right side
    178,362,175.50x = 153,506,814,505,494,848
  5. Step 5: Solve for x
    x = 153,506,814,505,494,848/178,362,175.50
  6. Step 6: Final answer
    x = 860,646,681.82

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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.