Home / 21,987,090.12-30,342,219.81-12,197,534.61

Finding the Fourth Proportional to 21,987,090.12, 30,342,219.81 and 12,197,534.61

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Solution

The fourth proportional to 21,987,090.12, 30,342,219.81 and 12,197,534.61 is: 16,832,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,090.12 : 30,342,219.81 = 12,197,534.61 : x
  2. Step 2: Convert to fraction form
    21,987,090.12/30,342,219.81 = 12,197,534.61/x
  3. Step 3: Cross multiply
    21,987,090.12x = 30,342,219.81 × 12,197,534.61
  4. Step 4: Simplify right side
    21,987,090.12x = 370,100,276,276,702.56
  5. Step 5: Solve for x
    x = 370,100,276,276,702.56/21,987,090.12
  6. Step 6: Final answer
    x = 16,832,617.42

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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.