Home / 285,352,921.60-428,043,379.20-149,304,025.60

Finding the Fourth Proportional to 285,352,921.60, 428,043,379.20 and 149,304,025.60

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Solution

The fourth proportional to 285,352,921.60, 428,043,379.20 and 149,304,025.60 is: 223,963,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,352,921.60 : 428,043,379.20 = 149,304,025.60 : x
  2. Step 2: Convert to fraction form
    285,352,921.60/428,043,379.20 = 149,304,025.60/x
  3. Step 3: Cross multiply
    285,352,921.60x = 428,043,379.20 × 149,304,025.60
  4. Step 4: Simplify right side
    285,352,921.60x = 63,908,599,645,987,304
  5. Step 5: Solve for x
    x = 63,908,599,645,987,304/285,352,921.60
  6. Step 6: Final answer
    x = 223,963,361.89

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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.