Home / 21,278,902.94-31,922,837.77-6,900,849.62

Finding the Fourth Proportional to 21,278,902.94, 31,922,837.77 and 6,900,849.62

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Solution

The fourth proportional to 21,278,902.94, 31,922,837.77 and 6,900,849.62 is: 10,352,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,902.94 : 31,922,837.77 = 6,900,849.62 : x
  2. Step 2: Convert to fraction form
    21,278,902.94/31,922,837.77 = 6,900,849.62/x
  3. Step 3: Cross multiply
    21,278,902.94x = 31,922,837.77 × 6,900,849.62
  4. Step 4: Simplify right side
    21,278,902.94x = 220,294,702,717,559.84
  5. Step 5: Solve for x
    x = 220,294,702,717,559.84/21,278,902.94
  6. Step 6: Final answer
    x = 10,352,728.40

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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.