Home / 261,784,189.31-361,264,672.69-144,313,732.76

Finding the Fourth Proportional to 261,784,189.31, 361,264,672.69 and 144,313,732.76

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Solution

The fourth proportional to 261,784,189.31, 361,264,672.69 and 144,313,732.76 is: 199,154,324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,784,189.31 : 361,264,672.69 = 144,313,732.76 : x
  2. Step 2: Convert to fraction form
    261,784,189.31/361,264,672.69 = 144,313,732.76/x
  3. Step 3: Cross multiply
    261,784,189.31x = 361,264,672.69 × 144,313,732.76
  4. Step 4: Simplify right side
    261,784,189.31x = 52,135,453,428,046,424
  5. Step 5: Solve for x
    x = 52,135,453,428,046,424/261,784,189.31
  6. Step 6: Final answer
    x = 199,154,324.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.