Home / 142,575,797-196,720,873.84-80,696,135.56

Finding the Fourth Proportional to 142,575,797, 196,720,873.84 and 80,696,135.56

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Solution

The fourth proportional to 142,575,797, 196,720,873.84 and 80,696,135.56 is: 111,341,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,575,797 : 196,720,873.84 = 80,696,135.56 : x
  2. Step 2: Convert to fraction form
    142,575,797/196,720,873.84 = 80,696,135.56/x
  3. Step 3: Cross multiply
    142,575,797x = 196,720,873.84 × 80,696,135.56
  4. Step 4: Simplify right side
    142,575,797x = 15,874,614,302,874,298
  5. Step 5: Solve for x
    x = 15,874,614,302,874,298/142,575,797
  6. Step 6: Final answer
    x = 111,341,578.56

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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.