Home / 142,118,121.71-196,015,017.18-122,304,839.39

Finding the Fourth Proportional to 142,118,121.71, 196,015,017.18 and 122,304,839.39

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Solution

The fourth proportional to 142,118,121.71, 196,015,017.18 and 122,304,839.39 is: 168,687,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,118,121.71 : 196,015,017.18 = 122,304,839.39 : x
  2. Step 2: Convert to fraction form
    142,118,121.71/196,015,017.18 = 122,304,839.39/x
  3. Step 3: Cross multiply
    142,118,121.71x = 196,015,017.18 × 122,304,839.39
  4. Step 4: Simplify right side
    142,118,121.71x = 23,973,585,194,441,616
  5. Step 5: Solve for x
    x = 23,973,585,194,441,616/142,118,121.71
  6. Step 6: Final answer
    x = 168,687,743.02

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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.