Home / 1,278,278,504.16-1,915,722,680.77-656,468,619.31

Finding the Fourth Proportional to 1,278,278,504.16, 1,915,722,680.77 and 656,468,619.31

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Solution

The fourth proportional to 1,278,278,504.16, 1,915,722,680.77 and 656,468,619.31 is: 983,832,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,278,504.16 : 1,915,722,680.77 = 656,468,619.31 : x
  2. Step 2: Convert to fraction form
    1,278,278,504.16/1,915,722,680.77 = 656,468,619.31/x
  3. Step 3: Cross multiply
    1,278,278,504.16x = 1,915,722,680.77 × 656,468,619.31
  4. Step 4: Simplify right side
    1,278,278,504.16x = 1,257,611,823,225,933,568
  5. Step 5: Solve for x
    x = 1,257,611,823,225,933,568/1,278,278,504.16
  6. Step 6: Final answer
    x = 983,832,411.43

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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.