Home / 161,722,828.40-242,418,905.40-79,715,577.20

Finding the Fourth Proportional to 161,722,828.40, 242,418,905.40 and 79,715,577.20

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Solution

The fourth proportional to 161,722,828.40, 242,418,905.40 and 79,715,577.20 is: 119,491,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,722,828.40 : 242,418,905.40 = 79,715,577.20 : x
  2. Step 2: Convert to fraction form
    161,722,828.40/242,418,905.40 = 79,715,577.20/x
  3. Step 3: Cross multiply
    161,722,828.40x = 242,418,905.40 × 79,715,577.20
  4. Step 4: Simplify right side
    161,722,828.40x = 19,324,562,968,153,200
  5. Step 5: Solve for x
    x = 19,324,562,968,153,200/161,722,828.40
  6. Step 6: Final answer
    x = 119,491,868.65

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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.