Home / 6,978,158,684.64-9,629,888,923.20-3,806,411,721.12

Finding the Fourth Proportional to 6,978,158,684.64, 9,629,888,923.20 and 3,806,411,721.12

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Solution

The fourth proportional to 6,978,158,684.64, 9,629,888,923.20 and 3,806,411,721.12 is: 5,252,864,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978,158,684.64 : 9,629,888,923.20 = 3,806,411,721.12 : x
  2. Step 2: Convert to fraction form
    6,978,158,684.64/9,629,888,923.20 = 3,806,411,721.12/x
  3. Step 3: Cross multiply
    6,978,158,684.64x = 9,629,888,923.20 × 3,806,411,721.12
  4. Step 4: Simplify right side
    6,978,158,684.64x = 36,655,322,070,352,138,240
  5. Step 5: Solve for x
    x = 36,655,322,070,352,138,240/6,978,158,684.64
  6. Step 6: Final answer
    x = 5,252,864,505.80

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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.