Home / 3,899,125.55-5,380,379.03-2,156,518.07

Finding the Fourth Proportional to 3,899,125.55, 5,380,379.03 and 2,156,518.07

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Solution

The fourth proportional to 3,899,125.55, 5,380,379.03 and 2,156,518.07 is: 2,975,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,125.55 : 5,380,379.03 = 2,156,518.07 : x
  2. Step 2: Convert to fraction form
    3,899,125.55/5,380,379.03 = 2,156,518.07/x
  3. Step 3: Cross multiply
    3,899,125.55x = 5,380,379.03 × 2,156,518.07
  4. Step 4: Simplify right side
    3,899,125.55x = 11,602,884,563,959.59
  5. Step 5: Solve for x
    x = 11,602,884,563,959.59/3,899,125.55
  6. Step 6: Final answer
    x = 2,975,765.83

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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.