Home / 128,364,813.61-192,555,274.83-36,255,763.87

Finding the Fourth Proportional to 128,364,813.61, 192,555,274.83 and 36,255,763.87

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Solution

The fourth proportional to 128,364,813.61, 192,555,274.83 and 36,255,763.87 is: 54,385,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,364,813.61 : 192,555,274.83 = 36,255,763.87 : x
  2. Step 2: Convert to fraction form
    128,364,813.61/192,555,274.83 = 36,255,763.87/x
  3. Step 3: Cross multiply
    128,364,813.61x = 192,555,274.83 × 36,255,763.87
  4. Step 4: Simplify right side
    128,364,813.61x = 6,981,238,576,159,434
  5. Step 5: Solve for x
    x = 6,981,238,576,159,434/128,364,813.61
  6. Step 6: Final answer
    x = 54,385,920.72

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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.