Home / 133,144,429.20-199,590,672.60-78,598,899.60

Finding the Fourth Proportional to 133,144,429.20, 199,590,672.60 and 78,598,899.60

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Solution

The fourth proportional to 133,144,429.20, 199,590,672.60 and 78,598,899.60 is: 117,823,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144,429.20 : 199,590,672.60 = 78,598,899.60 : x
  2. Step 2: Convert to fraction form
    133,144,429.20/199,590,672.60 = 78,598,899.60/x
  3. Step 3: Cross multiply
    133,144,429.20x = 199,590,672.60 × 78,598,899.60
  4. Step 4: Simplify right side
    133,144,429.20x = 15,687,607,236,783,870
  5. Step 5: Solve for x
    x = 15,687,607,236,783,870/133,144,429.20
  6. Step 6: Final answer
    x = 117,823,985.06

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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.