Home / 287,712,233.20-431,072,338.20-134,043,115.60

Finding the Fourth Proportional to 287,712,233.20, 431,072,338.20 and 134,043,115.60

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Solution

The fourth proportional to 287,712,233.20, 431,072,338.20 and 134,043,115.60 is: 200,833,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,712,233.20 : 431,072,338.20 = 134,043,115.60 : x
  2. Step 2: Convert to fraction form
    287,712,233.20/431,072,338.20 = 134,043,115.60/x
  3. Step 3: Cross multiply
    287,712,233.20x = 431,072,338.20 × 134,043,115.60
  4. Step 4: Simplify right side
    287,712,233.20x = 57,782,279,261,304,888
  5. Step 5: Solve for x
    x = 57,782,279,261,304,888/287,712,233.20
  6. Step 6: Final answer
    x = 200,833,585.07

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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.