Home / 2,690,141,383.51-3,713,133,586.21-1,561,474,763.65

Finding the Fourth Proportional to 2,690,141,383.51, 3,713,133,586.21 and 1,561,474,763.65

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Solution

The fourth proportional to 2,690,141,383.51, 3,713,133,586.21 and 1,561,474,763.65 is: 2,155,263,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690,141,383.51 : 3,713,133,586.21 = 1,561,474,763.65 : x
  2. Step 2: Convert to fraction form
    2,690,141,383.51/3,713,133,586.21 = 1,561,474,763.65/x
  3. Step 3: Cross multiply
    2,690,141,383.51x = 3,713,133,586.21 × 1,561,474,763.65
  4. Step 4: Simplify right side
    2,690,141,383.51x = 5,797,964,388,923,397,120
  5. Step 5: Solve for x
    x = 5,797,964,388,923,397,120/2,690,141,383.51
  6. Step 6: Final answer
    x = 2,155,263,817.90

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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.