Home / 142,575,793.82-196,720,869.44-80,696,132.38

Finding the Fourth Proportional to 142,575,793.82, 196,720,869.44 and 80,696,132.38

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Solution

The fourth proportional to 142,575,793.82, 196,720,869.44 and 80,696,132.38 is: 111,341,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,575,793.82 : 196,720,869.44 = 80,696,132.38 : x
  2. Step 2: Convert to fraction form
    142,575,793.82/196,720,869.44 = 80,696,132.38/x
  3. Step 3: Cross multiply
    142,575,793.82x = 196,720,869.44 × 80,696,132.38
  4. Step 4: Simplify right side
    142,575,793.82x = 15,874,613,322,686,576
  5. Step 5: Solve for x
    x = 15,874,613,322,686,576/142,575,793.82
  6. Step 6: Final answer
    x = 111,341,574.17

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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.