Home / 432,178,591.28-648,323,690.88-198,953,052.56

Finding the Fourth Proportional to 432,178,591.28, 648,323,690.88 and 198,953,052.56

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Solution

The fourth proportional to 432,178,591.28, 648,323,690.88 and 198,953,052.56 is: 298,455,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,178,591.28 : 648,323,690.88 = 198,953,052.56 : x
  2. Step 2: Convert to fraction form
    432,178,591.28/648,323,690.88 = 198,953,052.56/x
  3. Step 3: Cross multiply
    432,178,591.28x = 648,323,690.88 × 198,953,052.56
  4. Step 4: Simplify right side
    432,178,591.28x = 128,985,977,347,541,840
  5. Step 5: Solve for x
    x = 128,985,977,347,541,840/432,178,591.28
  6. Step 6: Final answer
    x = 298,455,268.15

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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.