Home / 1,585,969,693.20-2,188,509,862.32-916,957,661.64

Finding the Fourth Proportional to 1,585,969,693.20, 2,188,509,862.32 and 916,957,661.64

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Solution

The fourth proportional to 1,585,969,693.20, 2,188,509,862.32 and 916,957,661.64 is: 1,265,327,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,969,693.20 : 2,188,509,862.32 = 916,957,661.64 : x
  2. Step 2: Convert to fraction form
    1,585,969,693.20/2,188,509,862.32 = 916,957,661.64/x
  3. Step 3: Cross multiply
    1,585,969,693.20x = 2,188,509,862.32 × 916,957,661.64
  4. Step 4: Simplify right side
    1,585,969,693.20x = 2,006,770,885,829,025,792
  5. Step 5: Solve for x
    x = 2,006,770,885,829,025,792/1,585,969,693.20
  6. Step 6: Final answer
    x = 1,265,327,385.78

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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.