Home / 729,415,427.20-1,094,123,140.80-218,812,163.20

Finding the Fourth Proportional to 729,415,427.20, 1,094,123,140.80 and 218,812,163.20

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Solution

The fourth proportional to 729,415,427.20, 1,094,123,140.80 and 218,812,163.20 is: 328,218,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,415,427.20 : 1,094,123,140.80 = 218,812,163.20 : x
  2. Step 2: Convert to fraction form
    729,415,427.20/1,094,123,140.80 = 218,812,163.20/x
  3. Step 3: Cross multiply
    729,415,427.20x = 1,094,123,140.80 × 218,812,163.20
  4. Step 4: Simplify right side
    729,415,427.20x = 239,407,451,245,626,144
  5. Step 5: Solve for x
    x = 239,407,451,245,626,144/729,415,427.20
  6. Step 6: Final answer
    x = 328,218,244.80

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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.