Home / 126,336,015.40-189,504,023.10-54,532,431.40

Finding the Fourth Proportional to 126,336,015.40, 189,504,023.10 and 54,532,431.40

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Solution

The fourth proportional to 126,336,015.40, 189,504,023.10 and 54,532,431.40 is: 81,798,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,336,015.40 : 189,504,023.10 = 54,532,431.40 : x
  2. Step 2: Convert to fraction form
    126,336,015.40/189,504,023.10 = 54,532,431.40/x
  3. Step 3: Cross multiply
    126,336,015.40x = 189,504,023.10 × 54,532,431.40
  4. Step 4: Simplify right side
    126,336,015.40x = 10,334,115,139,724,764
  5. Step 5: Solve for x
    x = 10,334,115,139,724,764/126,336,015.40
  6. Step 6: Final answer
    x = 81,798,647.10

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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.