Home / 268,256,376.80-402,384,565.20-252,384,005.60

Finding the Fourth Proportional to 268,256,376.80, 402,384,565.20 and 252,384,005.60

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Solution

The fourth proportional to 268,256,376.80, 402,384,565.20 and 252,384,005.60 is: 378,576,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,256,376.80 : 402,384,565.20 = 252,384,005.60 : x
  2. Step 2: Convert to fraction form
    268,256,376.80/402,384,565.20 = 252,384,005.60/x
  3. Step 3: Cross multiply
    268,256,376.80x = 402,384,565.20 × 252,384,005.60
  4. Step 4: Simplify right side
    268,256,376.80x = 101,555,428,356,790,352
  5. Step 5: Solve for x
    x = 101,555,428,356,790,352/268,256,376.80
  6. Step 6: Final answer
    x = 378,576,008.40

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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.