Home / 132,912,443.60-199,368,665.40-78,268,936.40

Finding the Fourth Proportional to 132,912,443.60, 199,368,665.40 and 78,268,936.40

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Solution

The fourth proportional to 132,912,443.60, 199,368,665.40 and 78,268,936.40 is: 117,403,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,912,443.60 : 199,368,665.40 = 78,268,936.40 : x
  2. Step 2: Convert to fraction form
    132,912,443.60/199,368,665.40 = 78,268,936.40/x
  3. Step 3: Cross multiply
    132,912,443.60x = 199,368,665.40 × 78,268,936.40
  4. Step 4: Simplify right side
    132,912,443.60x = 15,604,373,392,345,482
  5. Step 5: Solve for x
    x = 15,604,373,392,345,482/132,912,443.60
  6. Step 6: Final answer
    x = 117,403,404.60

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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.