Home / 100,598,947,881.21-138,826,979,676.45-54,874,219,744.27

Finding the Fourth Proportional to 100,598,947,881.21, 138,826,979,676.45 and 54,874,219,744.27

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Solution

The fourth proportional to 100,598,947,881.21, 138,826,979,676.45 and 54,874,219,744.27 is: 75,726,658,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,598,947,881.21 : 138,826,979,676.45 = 54,874,219,744.27 : x
  2. Step 2: Convert to fraction form
    100,598,947,881.21/138,826,979,676.45 = 54,874,219,744.27/x
  3. Step 3: Cross multiply
    100,598,947,881.21x = 138,826,979,676.45 × 54,874,219,744.27
  4. Step 4: Simplify right side
    100,598,947,881.21x = 7,618,022,189,198,822,342,656
  5. Step 5: Solve for x
    x = 7,618,022,189,198,822,342,656/100,598,947,881.21
  6. Step 6: Final answer
    x = 75,726,658,674.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.