Home / 523,969,400.80-786,024,085.20-178,836,306.40

Finding the Fourth Proportional to 523,969,400.80, 786,024,085.20 and 178,836,306.40

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Solution

The fourth proportional to 523,969,400.80, 786,024,085.20 and 178,836,306.40 is: 268,278,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,969,400.80 : 786,024,085.20 = 178,836,306.40 : x
  2. Step 2: Convert to fraction form
    523,969,400.80/786,024,085.20 = 178,836,306.40/x
  3. Step 3: Cross multiply
    523,969,400.80x = 786,024,085.20 × 178,836,306.40
  4. Step 4: Simplify right side
    523,969,400.80x = 140,569,644,138,606,912
  5. Step 5: Solve for x
    x = 140,569,644,138,606,912/523,969,400.80
  6. Step 6: Final answer
    x = 268,278,345.88

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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.