Home / 132,856,187.40-199,368,261.90-78,268,667.40

Finding the Fourth Proportional to 132,856,187.40, 199,368,261.90 and 78,268,667.40

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Solution

The fourth proportional to 132,856,187.40, 199,368,261.90 and 78,268,667.40 is: 117,452,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,187.40 : 199,368,261.90 = 78,268,667.40 : x
  2. Step 2: Convert to fraction form
    132,856,187.40/199,368,261.90 = 78,268,667.40/x
  3. Step 3: Cross multiply
    132,856,187.40x = 199,368,261.90 × 78,268,667.40
  4. Step 4: Simplify right side
    132,856,187.40x = 15,604,288,180,767,194
  5. Step 5: Solve for x
    x = 15,604,288,180,767,194/132,856,187.40
  6. Step 6: Final answer
    x = 117,452,476.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.