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Finding the Fourth Proportional to 199,563,997.60, 299,597,938.80 and 107,521,040.80

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Solution

The fourth proportional to 199,563,997.60, 299,597,938.80 and 107,521,040.80 is: 161,417,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,563,997.60 : 299,597,938.80 = 107,521,040.80 : x
  2. Step 2: Convert to fraction form
    199,563,997.60/299,597,938.80 = 107,521,040.80/x
  3. Step 3: Cross multiply
    199,563,997.60x = 299,597,938.80 × 107,521,040.80
  4. Step 4: Simplify right side
    199,563,997.60x = 32,213,082,201,310,704
  5. Step 5: Solve for x
    x = 32,213,082,201,310,704/199,563,997.60
  6. Step 6: Final answer
    x = 161,417,302.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.