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Finding the Fourth Proportional to 329,508,728.80, 494,263,093.20 and 292,520,435.20

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Solution

The fourth proportional to 329,508,728.80, 494,263,093.20 and 292,520,435.20 is: 438,780,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,508,728.80 : 494,263,093.20 = 292,520,435.20 : x
  2. Step 2: Convert to fraction form
    329,508,728.80/494,263,093.20 = 292,520,435.20/x
  3. Step 3: Cross multiply
    329,508,728.80x = 494,263,093.20 × 292,520,435.20
  4. Step 4: Simplify right side
    329,508,728.80x = 144,582,055,126,162,144
  5. Step 5: Solve for x
    x = 144,582,055,126,162,144/329,508,728.80
  6. Step 6: Final answer
    x = 438,780,652.80

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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.