Home / 20,645,502,673.89-28,480,479,657.98-13,033,981,947.81

Finding the Fourth Proportional to 20,645,502,673.89, 28,480,479,657.98 and 13,033,981,947.81

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Solution

The fourth proportional to 20,645,502,673.89, 28,480,479,657.98 and 13,033,981,947.81 is: 17,980,383,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,502,673.89 : 28,480,479,657.98 = 13,033,981,947.81 : x
  2. Step 2: Convert to fraction form
    20,645,502,673.89/28,480,479,657.98 = 13,033,981,947.81/x
  3. Step 3: Cross multiply
    20,645,502,673.89x = 28,480,479,657.98 × 13,033,981,947.81
  4. Step 4: Simplify right side
    20,645,502,673.89x = 371,214,057,727,081,250,816
  5. Step 5: Solve for x
    x = 371,214,057,727,081,250,816/20,645,502,673.89
  6. Step 6: Final answer
    x = 17,980,383,601.73

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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.