Home / 90,640,228.07-125,083,532.67-49,387,120.58

Finding the Fourth Proportional to 90,640,228.07, 125,083,532.67 and 49,387,120.58

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Solution

The fourth proportional to 90,640,228.07, 125,083,532.67 and 49,387,120.58 is: 68,154,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,228.07 : 125,083,532.67 = 49,387,120.58 : x
  2. Step 2: Convert to fraction form
    90,640,228.07/125,083,532.67 = 49,387,120.58/x
  3. Step 3: Cross multiply
    90,640,228.07x = 125,083,532.67 × 49,387,120.58
  4. Step 4: Simplify right side
    90,640,228.07x = 6,177,515,510,545,659
  5. Step 5: Solve for x
    x = 6,177,515,510,545,659/90,640,228.07
  6. Step 6: Final answer
    x = 68,154,236.17

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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.