Home / 205,079,145.90-307,760,436.45-147,620,532.30

Finding the Fourth Proportional to 205,079,145.90, 307,760,436.45 and 147,620,532.30

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Solution

The fourth proportional to 205,079,145.90, 307,760,436.45 and 147,620,532.30 is: 221,532,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,079,145.90 : 307,760,436.45 = 147,620,532.30 : x
  2. Step 2: Convert to fraction form
    205,079,145.90/307,760,436.45 = 147,620,532.30/x
  3. Step 3: Cross multiply
    205,079,145.90x = 307,760,436.45 × 147,620,532.30
  4. Step 4: Simplify right side
    205,079,145.90x = 45,431,759,449,629,328
  5. Step 5: Solve for x
    x = 45,431,759,449,629,328/205,079,145.90
  6. Step 6: Final answer
    x = 221,532,809.93

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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.