Home / 144,945,793.68-217,144,362.96-85,680,743.64

Finding the Fourth Proportional to 144,945,793.68, 217,144,362.96 and 85,680,743.64

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Solution

The fourth proportional to 144,945,793.68, 217,144,362.96 and 85,680,743.64 is: 128,358,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,945,793.68 : 217,144,362.96 = 85,680,743.64 : x
  2. Step 2: Convert to fraction form
    144,945,793.68/217,144,362.96 = 85,680,743.64/x
  3. Step 3: Cross multiply
    144,945,793.68x = 217,144,362.96 × 85,680,743.64
  4. Step 4: Simplify right side
    144,945,793.68x = 18,605,090,495,646,872
  5. Step 5: Solve for x
    x = 18,605,090,495,646,872/144,945,793.68
  6. Step 6: Final answer
    x = 128,358,954.22

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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.