Home / 121,313,781.60-181,970,672.40-109,220,546.40

Finding the Fourth Proportional to 121,313,781.60, 181,970,672.40 and 109,220,546.40

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Solution

The fourth proportional to 121,313,781.60, 181,970,672.40 and 109,220,546.40 is: 163,830,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,313,781.60 : 181,970,672.40 = 109,220,546.40 : x
  2. Step 2: Convert to fraction form
    121,313,781.60/181,970,672.40 = 109,220,546.40/x
  3. Step 3: Cross multiply
    121,313,781.60x = 181,970,672.40 × 109,220,546.40
  4. Step 4: Simplify right side
    121,313,781.60x = 19,874,936,268,303,400
  5. Step 5: Solve for x
    x = 19,874,936,268,303,400/121,313,781.60
  6. Step 6: Final answer
    x = 163,830,819.60

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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.