Home / 2,160,652,747.89-2,981,661,924.87-1,220,835,211.65

Finding the Fourth Proportional to 2,160,652,747.89, 2,981,661,924.87 and 1,220,835,211.65

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Solution

The fourth proportional to 2,160,652,747.89, 2,981,661,924.87 and 1,220,835,211.65 is: 1,684,730,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,652,747.89 : 2,981,661,924.87 = 1,220,835,211.65 : x
  2. Step 2: Convert to fraction form
    2,160,652,747.89/2,981,661,924.87 = 1,220,835,211.65/x
  3. Step 3: Cross multiply
    2,160,652,747.89x = 2,981,661,924.87 × 1,220,835,211.65
  4. Step 4: Simplify right side
    2,160,652,747.89x = 3,640,117,867,117,412,864
  5. Step 5: Solve for x
    x = 3,640,117,867,117,412,864/2,160,652,747.89
  6. Step 6: Final answer
    x = 1,684,730,630.90

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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.