Home / 142,454,418-196,587,109.80-80,573,424.72

Finding the Fourth Proportional to 142,454,418, 196,587,109.80 and 80,573,424.72

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Solution

The fourth proportional to 142,454,418, 196,587,109.80 and 80,573,424.72 is: 111,191,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,454,418 : 196,587,109.80 = 80,573,424.72 : x
  2. Step 2: Convert to fraction form
    142,454,418/196,587,109.80 = 80,573,424.72/x
  3. Step 3: Cross multiply
    142,454,418x = 196,587,109.80 × 80,573,424.72
  4. Step 4: Simplify right side
    142,454,418x = 15,839,696,692,392,674
  5. Step 5: Solve for x
    x = 15,839,696,692,392,674/142,454,418
  6. Step 6: Final answer
    x = 111,191,333.44

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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.