Home / 279,045,930.30-418,568,895.45-84,955,803.90

Finding the Fourth Proportional to 279,045,930.30, 418,568,895.45 and 84,955,803.90

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Solution

The fourth proportional to 279,045,930.30, 418,568,895.45 and 84,955,803.90 is: 127,433,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,045,930.30 : 418,568,895.45 = 84,955,803.90 : x
  2. Step 2: Convert to fraction form
    279,045,930.30/418,568,895.45 = 84,955,803.90/x
  3. Step 3: Cross multiply
    279,045,930.30x = 418,568,895.45 × 84,955,803.90
  4. Step 4: Simplify right side
    279,045,930.30x = 35,559,857,000,489,804
  5. Step 5: Solve for x
    x = 35,559,857,000,489,804/279,045,930.30
  6. Step 6: Final answer
    x = 127,433,705.85

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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.