Home / 1,962,155,809.92-2,942,048,231.52-781,917,859.04

Finding the Fourth Proportional to 1,962,155,809.92, 2,942,048,231.52 and 781,917,859.04

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Solution

The fourth proportional to 1,962,155,809.92, 2,942,048,231.52 and 781,917,859.04 is: 1,172,404,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962,155,809.92 : 2,942,048,231.52 = 781,917,859.04 : x
  2. Step 2: Convert to fraction form
    1,962,155,809.92/2,942,048,231.52 = 781,917,859.04/x
  3. Step 3: Cross multiply
    1,962,155,809.92x = 2,942,048,231.52 × 781,917,859.04
  4. Step 4: Simplify right side
    1,962,155,809.92x = 2,300,440,054,382,536,448
  5. Step 5: Solve for x
    x = 2,300,440,054,382,536,448/1,962,155,809.92
  6. Step 6: Final answer
    x = 1,172,404,374.18

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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.