Home / 485,116,721.70-727,675,082.55-266,682,660.90

Finding the Fourth Proportional to 485,116,721.70, 727,675,082.55 and 266,682,660.90

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Solution

The fourth proportional to 485,116,721.70, 727,675,082.55 and 266,682,660.90 is: 400,023,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,116,721.70 : 727,675,082.55 = 266,682,660.90 : x
  2. Step 2: Convert to fraction form
    485,116,721.70/727,675,082.55 = 266,682,660.90/x
  3. Step 3: Cross multiply
    485,116,721.70x = 727,675,082.55 × 266,682,660.90
  4. Step 4: Simplify right side
    485,116,721.70x = 194,058,327,285,061,152
  5. Step 5: Solve for x
    x = 194,058,327,285,061,152/485,116,721.70
  6. Step 6: Final answer
    x = 400,023,991.35

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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.