Home / 1,407,926,046.44-1,942,847,433.78-781,394,898.80

Finding the Fourth Proportional to 1,407,926,046.44, 1,942,847,433.78 and 781,394,898.80

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Solution

The fourth proportional to 1,407,926,046.44, 1,942,847,433.78 and 781,394,898.80 is: 1,078,274,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,926,046.44 : 1,942,847,433.78 = 781,394,898.80 : x
  2. Step 2: Convert to fraction form
    1,407,926,046.44/1,942,847,433.78 = 781,394,898.80/x
  3. Step 3: Cross multiply
    1,407,926,046.44x = 1,942,847,433.78 × 781,394,898.80
  4. Step 4: Simplify right side
    1,407,926,046.44x = 1,518,131,073,902,362,624
  5. Step 5: Solve for x
    x = 1,518,131,073,902,362,624/1,407,926,046.44
  6. Step 6: Final answer
    x = 1,078,274,727.38

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Double scale
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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.