Home / 542,535,914.11-812,777,025.34-320,543,380.15

Finding the Fourth Proportional to 542,535,914.11, 812,777,025.34 and 320,543,380.15

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Solution

The fourth proportional to 542,535,914.11, 812,777,025.34 and 320,543,380.15 is: 480,208,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,535,914.11 : 812,777,025.34 = 320,543,380.15 : x
  2. Step 2: Convert to fraction form
    542,535,914.11/812,777,025.34 = 320,543,380.15/x
  3. Step 3: Cross multiply
    542,535,914.11x = 812,777,025.34 × 320,543,380.15
  4. Step 4: Simplify right side
    542,535,914.11x = 260,530,295,010,745,792
  5. Step 5: Solve for x
    x = 260,530,295,010,745,792/542,535,914.11
  6. Step 6: Final answer
    x = 480,208,384.80

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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.