Home / 485,117,246.70-727,675,870.05-266,683,185.90

Finding the Fourth Proportional to 485,117,246.70, 727,675,870.05 and 266,683,185.90

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Solution

The fourth proportional to 485,117,246.70, 727,675,870.05 and 266,683,185.90 is: 400,024,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,246.70 : 727,675,870.05 = 266,683,185.90 : x
  2. Step 2: Convert to fraction form
    485,117,246.70/727,675,870.05 = 266,683,185.90/x
  3. Step 3: Cross multiply
    485,117,246.70x = 727,675,870.05 × 266,683,185.90
  4. Step 4: Simplify right side
    485,117,246.70x = 194,058,919,327,488,384
  5. Step 5: Solve for x
    x = 194,058,919,327,488,384/485,117,246.70
  6. Step 6: Final answer
    x = 400,024,778.85

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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.