Home / 147,216,774.42-203,156,512.91-80,236,335.78

Finding the Fourth Proportional to 147,216,774.42, 203,156,512.91 and 80,236,335.78

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Solution

The fourth proportional to 147,216,774.42, 203,156,512.91 and 80,236,335.78 is: 110,724,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,216,774.42 : 203,156,512.91 = 80,236,335.78 : x
  2. Step 2: Convert to fraction form
    147,216,774.42/203,156,512.91 = 80,236,335.78/x
  3. Step 3: Cross multiply
    147,216,774.42x = 203,156,512.91 × 80,236,335.78
  4. Step 4: Simplify right side
    147,216,774.42x = 16,300,534,185,740,664
  5. Step 5: Solve for x
    x = 16,300,534,185,740,664/147,216,774.42
  6. Step 6: Final answer
    x = 110,724,706.81

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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.