Home / 1,992,906,605.70-2,989,359,908.55-1,981,427,480.10

Finding the Fourth Proportional to 1,992,906,605.70, 2,989,359,908.55 and 1,981,427,480.10

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Solution

The fourth proportional to 1,992,906,605.70, 2,989,359,908.55 and 1,981,427,480.10 is: 2,972,141,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,906,605.70 : 2,989,359,908.55 = 1,981,427,480.10 : x
  2. Step 2: Convert to fraction form
    1,992,906,605.70/2,989,359,908.55 = 1,981,427,480.10/x
  3. Step 3: Cross multiply
    1,992,906,605.70x = 2,989,359,908.55 × 1,981,427,480.10
  4. Step 4: Simplify right side
    1,992,906,605.70x = 5,923,199,870,710,193,152
  5. Step 5: Solve for x
    x = 5,923,199,870,710,193,152/1,992,906,605.70
  6. Step 6: Final answer
    x = 2,972,141,220.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.