Home / 412,105,013.20-618,157,519.80-400,161,077.20

Finding the Fourth Proportional to 412,105,013.20, 618,157,519.80 and 400,161,077.20

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Solution

The fourth proportional to 412,105,013.20, 618,157,519.80 and 400,161,077.20 is: 600,241,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,105,013.20 : 618,157,519.80 = 400,161,077.20 : x
  2. Step 2: Convert to fraction form
    412,105,013.20/618,157,519.80 = 400,161,077.20/x
  3. Step 3: Cross multiply
    412,105,013.20x = 618,157,519.80 × 400,161,077.20
  4. Step 4: Simplify right side
    412,105,013.20x = 247,362,579,002,448,288
  5. Step 5: Solve for x
    x = 247,362,579,002,448,288/412,105,013.20
  6. Step 6: Final answer
    x = 600,241,615.80

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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.