Home / 156,077,255.84-215,376,512.19-85,512,769.34

Finding the Fourth Proportional to 156,077,255.84, 215,376,512.19 and 85,512,769.34

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Solution

The fourth proportional to 156,077,255.84, 215,376,512.19 and 85,512,769.34 is: 118,002,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,077,255.84 : 215,376,512.19 = 85,512,769.34 : x
  2. Step 2: Convert to fraction form
    156,077,255.84/215,376,512.19 = 85,512,769.34/x
  3. Step 3: Cross multiply
    156,077,255.84x = 215,376,512.19 × 85,512,769.34
  4. Step 4: Simplify right side
    156,077,255.84x = 18,417,442,008,157,168
  5. Step 5: Solve for x
    x = 18,417,442,008,157,168/156,077,255.84
  6. Step 6: Final answer
    x = 118,002,087.55

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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.