Home / 131,940,532.80-198,288,712.80-115,312,334.40

Finding the Fourth Proportional to 131,940,532.80, 198,288,712.80 and 115,312,334.40

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Solution

The fourth proportional to 131,940,532.80, 198,288,712.80 and 115,312,334.40 is: 173,298,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,940,532.80 : 198,288,712.80 = 115,312,334.40 : x
  2. Step 2: Convert to fraction form
    131,940,532.80/198,288,712.80 = 115,312,334.40/x
  3. Step 3: Cross multiply
    131,940,532.80x = 198,288,712.80 × 115,312,334.40
  4. Step 4: Simplify right side
    131,940,532.80x = 22,865,134,358,139,164
  5. Step 5: Solve for x
    x = 22,865,134,358,139,164/131,940,532.80
  6. Step 6: Final answer
    x = 173,298,787.51

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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.