Home / 144,645,812.27-199,612,838.48-85,120,268.39

Finding the Fourth Proportional to 144,645,812.27, 199,612,838.48 and 85,120,268.39

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Solution

The fourth proportional to 144,645,812.27, 199,612,838.48 and 85,120,268.39 is: 117,466,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,645,812.27 : 199,612,838.48 = 85,120,268.39 : x
  2. Step 2: Convert to fraction form
    144,645,812.27/199,612,838.48 = 85,120,268.39/x
  3. Step 3: Cross multiply
    144,645,812.27x = 199,612,838.48 × 85,120,268.39
  4. Step 4: Simplify right side
    144,645,812.27x = 16,991,098,384,750,120
  5. Step 5: Solve for x
    x = 16,991,098,384,750,120/144,645,812.27
  6. Step 6: Final answer
    x = 117,466,922.26

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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.