Home / 126,138,961.20-174,045,768.10-72,483,255.82

Finding the Fourth Proportional to 126,138,961.20, 174,045,768.10 and 72,483,255.82

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Solution

The fourth proportional to 126,138,961.20, 174,045,768.10 and 72,483,255.82 is: 100,011,953.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138,961.20 : 174,045,768.10 = 72,483,255.82 : x
  2. Step 2: Convert to fraction form
    126,138,961.20/174,045,768.10 = 72,483,255.82/x
  3. Step 3: Cross multiply
    126,138,961.20x = 174,045,768.10 × 72,483,255.82
  4. Step 4: Simplify right side
    126,138,961.20x = 12,615,403,933,580,694
  5. Step 5: Solve for x
    x = 12,615,403,933,580,694/126,138,961.20
  6. Step 6: Final answer
    x = 100,011,953.59

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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.