Home / 21,278,904.96-31,922,840.78-6,900,851.60

Finding the Fourth Proportional to 21,278,904.96, 31,922,840.78 and 6,900,851.60

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Solution

The fourth proportional to 21,278,904.96, 31,922,840.78 and 6,900,851.60 is: 10,352,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,904.96 : 31,922,840.78 = 6,900,851.60 : x
  2. Step 2: Convert to fraction form
    21,278,904.96/31,922,840.78 = 6,900,851.60/x
  3. Step 3: Cross multiply
    21,278,904.96x = 31,922,840.78 × 6,900,851.60
  4. Step 4: Simplify right side
    21,278,904.96x = 220,294,786,873,208.25
  5. Step 5: Solve for x
    x = 220,294,786,873,208.25/21,278,904.96
  6. Step 6: Final answer
    x = 10,352,731.37

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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.