Home / 7,086,642.15-9,779,563.56-3,867,378.15

Finding the Fourth Proportional to 7,086,642.15, 9,779,563.56 and 3,867,378.15

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Solution

The fourth proportional to 7,086,642.15, 9,779,563.56 and 3,867,378.15 is: 5,336,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086,642.15 : 9,779,563.56 = 3,867,378.15 : x
  2. Step 2: Convert to fraction form
    7,086,642.15/9,779,563.56 = 3,867,378.15/x
  3. Step 3: Cross multiply
    7,086,642.15x = 9,779,563.56 × 3,867,378.15
  4. Step 4: Simplify right side
    7,086,642.15x = 37,821,270,428,480.22
  5. Step 5: Solve for x
    x = 37,821,270,428,480.22/7,086,642.15
  6. Step 6: Final answer
    x = 5,336,980.42

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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.