Home / 118,670,724.96-163,757,805.12-66,447,789.60

Finding the Fourth Proportional to 118,670,724.96, 163,757,805.12 and 66,447,789.60

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Solution

The fourth proportional to 118,670,724.96, 163,757,805.12 and 66,447,789.60 is: 91,693,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670,724.96 : 163,757,805.12 = 66,447,789.60 : x
  2. Step 2: Convert to fraction form
    118,670,724.96/163,757,805.12 = 66,447,789.60/x
  3. Step 3: Cross multiply
    118,670,724.96x = 163,757,805.12 × 66,447,789.60
  4. Step 4: Simplify right side
    118,670,724.96x = 10,881,344,179,971,564
  5. Step 5: Solve for x
    x = 10,881,344,179,971,564/118,670,724.96
  6. Step 6: Final answer
    x = 91,693,584.78

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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.