Home / 13,309,721.60-19,964,517.60-5,216,979.20

Finding the Fourth Proportional to 13,309,721.60, 19,964,517.60 and 5,216,979.20

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Solution

The fourth proportional to 13,309,721.60, 19,964,517.60 and 5,216,979.20 is: 7,825,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,721.60 : 19,964,517.60 = 5,216,979.20 : x
  2. Step 2: Convert to fraction form
    13,309,721.60/19,964,517.60 = 5,216,979.20/x
  3. Step 3: Cross multiply
    13,309,721.60x = 19,964,517.60 × 5,216,979.20
  4. Step 4: Simplify right side
    13,309,721.60x = 104,154,473,057,233.94
  5. Step 5: Solve for x
    x = 104,154,473,057,233.94/13,309,721.60
  6. Step 6: Final answer
    x = 7,825,443.40

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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.