Home / 128,364,812.61-192,555,273.33-36,255,762.87

Finding the Fourth Proportional to 128,364,812.61, 192,555,273.33 and 36,255,762.87

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Solution

The fourth proportional to 128,364,812.61, 192,555,273.33 and 36,255,762.87 is: 54,385,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,364,812.61 : 192,555,273.33 = 36,255,762.87 : x
  2. Step 2: Convert to fraction form
    128,364,812.61/192,555,273.33 = 36,255,762.87/x
  3. Step 3: Cross multiply
    128,364,812.61x = 192,555,273.33 × 36,255,762.87
  4. Step 4: Simplify right side
    128,364,812.61x = 6,981,238,329,220,515
  5. Step 5: Solve for x
    x = 6,981,238,329,220,515/128,364,812.61
  6. Step 6: Final answer
    x = 54,385,919.22

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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.