Home / 1,422,378,924.33-1,962,935,470.17-778,679,981.04

Finding the Fourth Proportional to 1,422,378,924.33, 1,962,935,470.17 and 778,679,981.04

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Solution

The fourth proportional to 1,422,378,924.33, 1,962,935,470.17 and 778,679,981.04 is: 1,074,607,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,378,924.33 : 1,962,935,470.17 = 778,679,981.04 : x
  2. Step 2: Convert to fraction form
    1,422,378,924.33/1,962,935,470.17 = 778,679,981.04/x
  3. Step 3: Cross multiply
    1,422,378,924.33x = 1,962,935,470.17 × 778,679,981.04
  4. Step 4: Simplify right side
    1,422,378,924.33x = 1,528,498,554,694,718,976
  5. Step 5: Solve for x
    x = 1,528,498,554,694,718,976/1,422,378,924.33
  6. Step 6: Final answer
    x = 1,074,607,144.80

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Double scale
Find fourth proportional to 1,422,378,925.33, 1,962,935,471.55 and 778,679,982.04
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1.5x scale

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.