Home / 288,738,833.76-398,459,680.92-156,579,791.04

Finding the Fourth Proportional to 288,738,833.76, 398,459,680.92 and 156,579,791.04

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Solution

The fourth proportional to 288,738,833.76, 398,459,680.92 and 156,579,791.04 is: 216,080,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,738,833.76 : 398,459,680.92 = 156,579,791.04 : x
  2. Step 2: Convert to fraction form
    288,738,833.76/398,459,680.92 = 156,579,791.04/x
  3. Step 3: Cross multiply
    288,738,833.76x = 398,459,680.92 × 156,579,791.04
  4. Step 4: Simplify right side
    288,738,833.76x = 62,390,733,576,318,672
  5. Step 5: Solve for x
    x = 62,390,733,576,318,672/288,738,833.76
  6. Step 6: Final answer
    x = 216,080,160.62

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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.