Home / 143,056,359,883.62-197,408,881,505.65-78,823,489,655.34

Finding the Fourth Proportional to 143,056,359,883.62, 197,408,881,505.65 and 78,823,489,655.34

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Solution

The fourth proportional to 143,056,359,883.62, 197,408,881,505.65 and 78,823,489,655.34 is: 108,771,514,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,056,359,883.62 : 197,408,881,505.65 = 78,823,489,655.34 : x
  2. Step 2: Convert to fraction form
    143,056,359,883.62/197,408,881,505.65 = 78,823,489,655.34/x
  3. Step 3: Cross multiply
    143,056,359,883.62x = 197,408,881,505.65 × 78,823,489,655.34
  4. Step 4: Simplify right side
    143,056,359,883.62x = 15,560,456,929,232,841,342,976
  5. Step 5: Solve for x
    x = 15,560,456,929,232,841,342,976/143,056,359,883.62
  6. Step 6: Final answer
    x = 108,771,514,540.78

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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.