Home / 161,722,830.40-242,418,908.40-79,715,579.20

Finding the Fourth Proportional to 161,722,830.40, 242,418,908.40 and 79,715,579.20

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Solution

The fourth proportional to 161,722,830.40, 242,418,908.40 and 79,715,579.20 is: 119,491,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,722,830.40 : 242,418,908.40 = 79,715,579.20 : x
  2. Step 2: Convert to fraction form
    161,722,830.40/242,418,908.40 = 79,715,579.20/x
  3. Step 3: Cross multiply
    161,722,830.40x = 242,418,908.40 × 79,715,579.20
  4. Step 4: Simplify right side
    161,722,830.40x = 19,324,563,692,137,748
  5. Step 5: Solve for x
    x = 19,324,563,692,137,748/161,722,830.40
  6. Step 6: Final answer
    x = 119,491,871.64

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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.