Home / 1,241,395,736.76-1,862,237,689.56-412,423,359.48

Finding the Fourth Proportional to 1,241,395,736.76, 1,862,237,689.56 and 412,423,359.48

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Solution

The fourth proportional to 1,241,395,736.76, 1,862,237,689.56 and 412,423,359.48 is: 618,682,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,395,736.76 : 1,862,237,689.56 = 412,423,359.48 : x
  2. Step 2: Convert to fraction form
    1,241,395,736.76/1,862,237,689.56 = 412,423,359.48/x
  3. Step 3: Cross multiply
    1,241,395,736.76x = 1,862,237,689.56 × 412,423,359.48
  4. Step 4: Simplify right side
    1,241,395,736.76x = 768,030,324,078,608,512
  5. Step 5: Solve for x
    x = 768,030,324,078,608,512/1,241,395,736.76
  6. Step 6: Final answer
    x = 618,682,907.74

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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.