Home / 15,520,203.68-21,416,856.35-9,321,567.17

Finding the Fourth Proportional to 15,520,203.68, 21,416,856.35 and 9,321,567.17

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Solution

The fourth proportional to 15,520,203.68, 21,416,856.35 and 9,321,567.17 is: 12,863,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520,203.68 : 21,416,856.35 = 9,321,567.17 : x
  2. Step 2: Convert to fraction form
    15,520,203.68/21,416,856.35 = 9,321,567.17/x
  3. Step 3: Cross multiply
    15,520,203.68x = 21,416,856.35 × 9,321,567.17
  4. Step 4: Simplify right side
    15,520,203.68x = 199,638,664,883,073.88
  5. Step 5: Solve for x
    x = 199,638,664,883,073.88/15,520,203.68
  6. Step 6: Final answer
    x = 12,863,147.23

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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.