Home / 21,335,455.12-31,990,222.56-8,366,067.16

Finding the Fourth Proportional to 21,335,455.12, 31,990,222.56 and 8,366,067.16

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Solution

The fourth proportional to 21,335,455.12, 31,990,222.56 and 8,366,067.16 is: 12,544,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,455.12 : 31,990,222.56 = 8,366,067.16 : x
  2. Step 2: Convert to fraction form
    21,335,455.12/31,990,222.56 = 8,366,067.16/x
  3. Step 3: Cross multiply
    21,335,455.12x = 31,990,222.56 × 8,366,067.16
  4. Step 4: Simplify right side
    21,335,455.12x = 267,632,350,400,307.12
  5. Step 5: Solve for x
    x = 267,632,350,400,307.12/21,335,455.12
  6. Step 6: Final answer
    x = 12,544,018.81

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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.