Home / 312,134,760.45-468,060,423.08-117,981,648.45

Finding the Fourth Proportional to 312,134,760.45, 468,060,423.08 and 117,981,648.45

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Solution

The fourth proportional to 312,134,760.45, 468,060,423.08 and 117,981,648.45 is: 176,918,905.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,134,760.45 : 468,060,423.08 = 117,981,648.45 : x
  2. Step 2: Convert to fraction form
    312,134,760.45/468,060,423.08 = 117,981,648.45/x
  3. Step 3: Cross multiply
    312,134,760.45x = 468,060,423.08 × 117,981,648.45
  4. Step 4: Simplify right side
    312,134,760.45x = 55,222,540,288,592,920
  5. Step 5: Solve for x
    x = 55,222,540,288,592,920/312,134,760.45
  6. Step 6: Final answer
    x = 176,918,905.82

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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.