Home / 171,315,521.70-256,973,282.55-90,693,953.70

Finding the Fourth Proportional to 171,315,521.70, 256,973,282.55 and 90,693,953.70

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Solution

The fourth proportional to 171,315,521.70, 256,973,282.55 and 90,693,953.70 is: 136,040,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,315,521.70 : 256,973,282.55 = 90,693,953.70 : x
  2. Step 2: Convert to fraction form
    171,315,521.70/256,973,282.55 = 90,693,953.70/x
  3. Step 3: Cross multiply
    171,315,521.70x = 256,973,282.55 × 90,693,953.70
  4. Step 4: Simplify right side
    171,315,521.70x = 23,305,922,989,726,720
  5. Step 5: Solve for x
    x = 23,305,922,989,726,720/171,315,521.70
  6. Step 6: Final answer
    x = 136,040,930.55

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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.