Home / 137,096,480.54-189,193,143.16-78,360,406.79

Finding the Fourth Proportional to 137,096,480.54, 189,193,143.16 and 78,360,406.79

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Solution

The fourth proportional to 137,096,480.54, 189,193,143.16 and 78,360,406.79 is: 108,137,361.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,096,480.54 : 189,193,143.16 = 78,360,406.79 : x
  2. Step 2: Convert to fraction form
    137,096,480.54/189,193,143.16 = 78,360,406.79/x
  3. Step 3: Cross multiply
    137,096,480.54x = 189,193,143.16 × 78,360,406.79
  4. Step 4: Simplify right side
    137,096,480.54x = 14,825,251,660,173,388
  5. Step 5: Solve for x
    x = 14,825,251,660,173,388/137,096,480.54
  6. Step 6: Final answer
    x = 108,137,361.38

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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.