Home / 513,598,449.20-770,456,129.92-186,228,149.36

Finding the Fourth Proportional to 513,598,449.20, 770,456,129.92 and 186,228,149.36

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Solution

The fourth proportional to 513,598,449.20, 770,456,129.92 and 186,228,149.36 is: 279,363,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,598,449.20 : 770,456,129.92 = 186,228,149.36 : x
  2. Step 2: Convert to fraction form
    513,598,449.20/770,456,129.92 = 186,228,149.36/x
  3. Step 3: Cross multiply
    513,598,449.20x = 770,456,129.92 × 186,228,149.36
  4. Step 4: Simplify right side
    513,598,449.20x = 143,480,619,238,069,328
  5. Step 5: Solve for x
    x = 143,480,619,238,069,328/513,598,449.20
  6. Step 6: Final answer
    x = 279,363,419.93

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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.