Home / 126,372,313.80-189,579,465.90-49,697,843.40

Finding the Fourth Proportional to 126,372,313.80, 189,579,465.90 and 49,697,843.40

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Solution

The fourth proportional to 126,372,313.80, 189,579,465.90 and 49,697,843.40 is: 74,555,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,313.80 : 189,579,465.90 = 49,697,843.40 : x
  2. Step 2: Convert to fraction form
    126,372,313.80/189,579,465.90 = 49,697,843.40/x
  3. Step 3: Cross multiply
    126,372,313.80x = 189,579,465.90 × 49,697,843.40
  4. Step 4: Simplify right side
    126,372,313.80x = 9,421,690,608,153,840
  5. Step 5: Solve for x
    x = 9,421,690,608,153,840/126,372,313.80
  6. Step 6: Final answer
    x = 74,555,021.78

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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.