Home / 21,062,720.10-31,594,080.15-11,961,300.90

Finding the Fourth Proportional to 21,062,720.10, 31,594,080.15 and 11,961,300.90

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Solution

The fourth proportional to 21,062,720.10, 31,594,080.15 and 11,961,300.90 is: 17,941,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,720.10 : 31,594,080.15 = 11,961,300.90 : x
  2. Step 2: Convert to fraction form
    21,062,720.10/31,594,080.15 = 11,961,300.90/x
  3. Step 3: Cross multiply
    21,062,720.10x = 31,594,080.15 × 11,961,300.90
  4. Step 4: Simplify right side
    21,062,720.10x = 377,906,299,332,867.12
  5. Step 5: Solve for x
    x = 377,906,299,332,867.12/21,062,720.10
  6. Step 6: Final answer
    x = 17,941,951.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.