Home / 1,941,690,709.20-2,912,621,081.40-561,644,720.40

Finding the Fourth Proportional to 1,941,690,709.20, 2,912,621,081.40 and 561,644,720.40

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Solution

The fourth proportional to 1,941,690,709.20, 2,912,621,081.40 and 561,644,720.40 is: 842,491,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,690,709.20 : 2,912,621,081.40 = 561,644,720.40 : x
  2. Step 2: Convert to fraction form
    1,941,690,709.20/2,912,621,081.40 = 561,644,720.40/x
  3. Step 3: Cross multiply
    1,941,690,709.20x = 2,912,621,081.40 × 561,644,720.40
  4. Step 4: Simplify right side
    1,941,690,709.20x = 1,635,858,252,894,048,512
  5. Step 5: Solve for x
    x = 1,635,858,252,894,048,512/1,941,690,709.20
  6. Step 6: Final answer
    x = 842,491,672.41

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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.