Home / 1,565,859,997.76-2,160,949,057.44-861,069,761.60

Finding the Fourth Proportional to 1,565,859,997.76, 2,160,949,057.44 and 861,069,761.60

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Solution

The fourth proportional to 1,565,859,997.76, 2,160,949,057.44 and 861,069,761.60 is: 1,188,310,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,859,997.76 : 2,160,949,057.44 = 861,069,761.60 : x
  2. Step 2: Convert to fraction form
    1,565,859,997.76/2,160,949,057.44 = 861,069,761.60/x
  3. Step 3: Cross multiply
    1,565,859,997.76x = 2,160,949,057.44 × 861,069,761.60
  4. Step 4: Simplify right side
    1,565,859,997.76x = 1,860,727,889,719,605,504
  5. Step 5: Solve for x
    x = 1,860,727,889,719,605,504/1,565,859,997.76
  6. Step 6: Final answer
    x = 1,188,310,508.21

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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.