Home / 7,119,486.90-9,824,895-3,856,291.74

Finding the Fourth Proportional to 7,119,486.90, 9,824,895 and 3,856,291.74

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Solution

The fourth proportional to 7,119,486.90, 9,824,895 and 3,856,291.74 is: 5,321,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119,486.90 : 9,824,895 = 3,856,291.74 : x
  2. Step 2: Convert to fraction form
    7,119,486.90/9,824,895 = 3,856,291.74/x
  3. Step 3: Cross multiply
    7,119,486.90x = 9,824,895 × 3,856,291.74
  4. Step 4: Simplify right side
    7,119,486.90x = 37,887,661,434,867.30
  5. Step 5: Solve for x
    x = 37,887,661,434,867.30/7,119,486.90
  6. Step 6: Final answer
    x = 5,321,684.27

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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.