Home / 261,956,723.40-392,935,085.10-180,327,385.80

Finding the Fourth Proportional to 261,956,723.40, 392,935,085.10 and 180,327,385.80

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Solution

The fourth proportional to 261,956,723.40, 392,935,085.10 and 180,327,385.80 is: 270,491,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,956,723.40 : 392,935,085.10 = 180,327,385.80 : x
  2. Step 2: Convert to fraction form
    261,956,723.40/392,935,085.10 = 180,327,385.80/x
  3. Step 3: Cross multiply
    261,956,723.40x = 392,935,085.10 × 180,327,385.80
  4. Step 4: Simplify right side
    261,956,723.40x = 70,856,956,685,183,544
  5. Step 5: Solve for x
    x = 70,856,956,685,183,544/261,956,723.40
  6. Step 6: Final answer
    x = 270,491,078.70

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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.