Home / 2,160,652,744.89-2,981,661,920.73-1,220,835,208.65

Finding the Fourth Proportional to 2,160,652,744.89, 2,981,661,920.73 and 1,220,835,208.65

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Solution

The fourth proportional to 2,160,652,744.89, 2,981,661,920.73 and 1,220,835,208.65 is: 1,684,730,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,652,744.89 : 2,981,661,920.73 = 1,220,835,208.65 : x
  2. Step 2: Convert to fraction form
    2,160,652,744.89/2,981,661,920.73 = 1,220,835,208.65/x
  3. Step 3: Cross multiply
    2,160,652,744.89x = 2,981,661,920.73 × 1,220,835,208.65
  4. Step 4: Simplify right side
    2,160,652,744.89x = 3,640,117,853,118,169,600
  5. Step 5: Solve for x
    x = 3,640,117,853,118,169,600/2,160,652,744.89
  6. Step 6: Final answer
    x = 1,684,730,626.76

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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.