Home / 199,410,392.94-275,332,108.14-128,887,728.77

Finding the Fourth Proportional to 199,410,392.94, 275,332,108.14 and 128,887,728.77

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Solution

The fourth proportional to 199,410,392.94, 275,332,108.14 and 128,887,728.77 is: 177,959,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,410,392.94 : 275,332,108.14 = 128,887,728.77 : x
  2. Step 2: Convert to fraction form
    199,410,392.94/275,332,108.14 = 128,887,728.77/x
  3. Step 3: Cross multiply
    199,410,392.94x = 275,332,108.14 × 128,887,728.77
  4. Step 4: Simplify right side
    199,410,392.94x = 35,486,930,074,243,968
  5. Step 5: Solve for x
    x = 35,486,930,074,243,968/199,410,392.94
  6. Step 6: Final answer
    x = 177,959,280.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.