Home / 214,627,531.60-321,983,287.80-91,805,611.60

Finding the Fourth Proportional to 214,627,531.60, 321,983,287.80 and 91,805,611.60

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Solution

The fourth proportional to 214,627,531.60, 321,983,287.80 and 91,805,611.60 is: 137,726,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,627,531.60 : 321,983,287.80 = 91,805,611.60 : x
  2. Step 2: Convert to fraction form
    214,627,531.60/321,983,287.80 = 91,805,611.60/x
  3. Step 3: Cross multiply
    214,627,531.60x = 321,983,287.80 × 91,805,611.60
  4. Step 4: Simplify right side
    214,627,531.60x = 29,559,872,661,457,816
  5. Step 5: Solve for x
    x = 29,559,872,661,457,816/214,627,531.60
  6. Step 6: Final answer
    x = 137,726,378.54

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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.