Home / 220,168,342.40-330,401,812.80-143,304,137.60

Finding the Fourth Proportional to 220,168,342.40, 330,401,812.80 and 143,304,137.60

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Solution

The fourth proportional to 220,168,342.40, 330,401,812.80 and 143,304,137.60 is: 215,053,382.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,168,342.40 : 330,401,812.80 = 143,304,137.60 : x
  2. Step 2: Convert to fraction form
    220,168,342.40/330,401,812.80 = 143,304,137.60/x
  3. Step 3: Cross multiply
    220,168,342.40x = 330,401,812.80 × 143,304,137.60
  4. Step 4: Simplify right side
    220,168,342.40x = 47,347,946,844,780,640
  5. Step 5: Solve for x
    x = 47,347,946,844,780,640/220,168,342.40
  6. Step 6: Final answer
    x = 215,053,382.92

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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.