Home / 3,438,185.15-5,158,308.96-1,387,790.64

Finding the Fourth Proportional to 3,438,185.15, 5,158,308.96 and 1,387,790.64

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Solution

The fourth proportional to 3,438,185.15, 5,158,308.96 and 1,387,790.64 is: 2,082,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,185.15 : 5,158,308.96 = 1,387,790.64 : x
  2. Step 2: Convert to fraction form
    3,438,185.15/5,158,308.96 = 1,387,790.64/x
  3. Step 3: Cross multiply
    3,438,185.15x = 5,158,308.96 × 1,387,790.64
  4. Step 4: Simplify right side
    3,438,185.15x = 7,158,652,892,916.13
  5. Step 5: Solve for x
    x = 7,158,652,892,916.13/3,438,185.15
  6. Step 6: Final answer
    x = 2,082,102.21

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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.