Home / 78,557,029.94-108,412,064.82-43,749,720.36

Finding the Fourth Proportional to 78,557,029.94, 108,412,064.82 and 43,749,720.36

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Solution

The fourth proportional to 78,557,029.94, 108,412,064.82 and 43,749,720.36 is: 60,376,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,557,029.94 : 108,412,064.82 = 43,749,720.36 : x
  2. Step 2: Convert to fraction form
    78,557,029.94/108,412,064.82 = 43,749,720.36/x
  3. Step 3: Cross multiply
    78,557,029.94x = 108,412,064.82 × 43,749,720.36
  4. Step 4: Simplify right side
    78,557,029.94x = 4,742,997,519,525,193
  5. Step 5: Solve for x
    x = 4,742,997,519,525,193/78,557,029.94
  6. Step 6: Final answer
    x = 60,376,487.29

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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.