Home / 3,438,957,112.79-5,157,438,175.73-1,339,965,338.90

Finding the Fourth Proportional to 3,438,957,112.79, 5,157,438,175.73 and 1,339,965,338.90

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Solution

The fourth proportional to 3,438,957,112.79, 5,157,438,175.73 and 1,339,965,338.90 is: 2,009,559,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,957,112.79 : 5,157,438,175.73 = 1,339,965,338.90 : x
  2. Step 2: Convert to fraction form
    3,438,957,112.79/5,157,438,175.73 = 1,339,965,338.90/x
  3. Step 3: Cross multiply
    3,438,957,112.79x = 5,157,438,175.73 × 1,339,965,338.90
  4. Step 4: Simplify right side
    3,438,957,112.79x = 6,910,788,392,975,410,176
  5. Step 5: Solve for x
    x = 6,910,788,392,975,410,176/3,438,957,112.79
  6. Step 6: Final answer
    x = 2,009,559,342.07

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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.