Home / 6,646,076.80-9,969,115.20-2,158,806.40

Finding the Fourth Proportional to 6,646,076.80, 9,969,115.20 and 2,158,806.40

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Solution

The fourth proportional to 6,646,076.80, 9,969,115.20 and 2,158,806.40 is: 3,238,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646,076.80 : 9,969,115.20 = 2,158,806.40 : x
  2. Step 2: Convert to fraction form
    6,646,076.80/9,969,115.20 = 2,158,806.40/x
  3. Step 3: Cross multiply
    6,646,076.80x = 9,969,115.20 × 2,158,806.40
  4. Step 4: Simplify right side
    6,646,076.80x = 21,521,389,696,097.28
  5. Step 5: Solve for x
    x = 21,521,389,696,097.28/6,646,076.80
  6. Step 6: Final answer
    x = 3,238,209.60

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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.