Home / 18,498,439.40-27,747,659.10-17,742,612.20

Finding the Fourth Proportional to 18,498,439.40, 27,747,659.10 and 17,742,612.20

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Solution

The fourth proportional to 18,498,439.40, 27,747,659.10 and 17,742,612.20 is: 26,613,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498,439.40 : 27,747,659.10 = 17,742,612.20 : x
  2. Step 2: Convert to fraction form
    18,498,439.40/27,747,659.10 = 17,742,612.20/x
  3. Step 3: Cross multiply
    18,498,439.40x = 27,747,659.10 × 17,742,612.20
  4. Step 4: Simplify right side
    18,498,439.40x = 492,315,954,869,101
  5. Step 5: Solve for x
    x = 492,315,954,869,101/18,498,439.40
  6. Step 6: Final answer
    x = 26,613,918.30

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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.