Home / 142,175,673.07-196,202,695.65-79,451,771.47

Finding the Fourth Proportional to 142,175,673.07, 196,202,695.65 and 79,451,771.47

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Solution

The fourth proportional to 142,175,673.07, 196,202,695.65 and 79,451,771.47 is: 109,643,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,175,673.07 : 196,202,695.65 = 79,451,771.47 : x
  2. Step 2: Convert to fraction form
    142,175,673.07/196,202,695.65 = 79,451,771.47/x
  3. Step 3: Cross multiply
    142,175,673.07x = 196,202,695.65 × 79,451,771.47
  4. Step 4: Simplify right side
    142,175,673.07x = 15,588,651,736,239,832
  5. Step 5: Solve for x
    x = 15,588,651,736,239,832/142,175,673.07
  6. Step 6: Final answer
    x = 109,643,593.73

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1.5x scale

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.