Home / 66,628,708.50-91,970,733.22-45,789,724.56

Finding the Fourth Proportional to 66,628,708.50, 91,970,733.22 and 45,789,724.56

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Solution

The fourth proportional to 66,628,708.50, 91,970,733.22 and 45,789,724.56 is: 63,205,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,628,708.50 : 91,970,733.22 = 45,789,724.56 : x
  2. Step 2: Convert to fraction form
    66,628,708.50/91,970,733.22 = 45,789,724.56/x
  3. Step 3: Cross multiply
    66,628,708.50x = 91,970,733.22 × 45,789,724.56
  4. Step 4: Simplify right side
    66,628,708.50x = 4,211,314,541,725,042
  5. Step 5: Solve for x
    x = 4,211,314,541,725,042/66,628,708.50
  6. Step 6: Final answer
    x = 63,205,705.72

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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.