Home / 128,729,975.60-192,945,664.20-52,002,628.40

Finding the Fourth Proportional to 128,729,975.60, 192,945,664.20 and 52,002,628.40

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Solution

The fourth proportional to 128,729,975.60, 192,945,664.20 and 52,002,628.40 is: 77,943,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,729,975.60 : 192,945,664.20 = 52,002,628.40 : x
  2. Step 2: Convert to fraction form
    128,729,975.60/192,945,664.20 = 52,002,628.40/x
  3. Step 3: Cross multiply
    128,729,975.60x = 192,945,664.20 × 52,002,628.40
  4. Step 4: Simplify right side
    128,729,975.60x = 10,033,681,676,783,782
  5. Step 5: Solve for x
    x = 10,033,681,676,783,782/128,729,975.60
  6. Step 6: Final answer
    x = 77,943,630.69

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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.