Home / 21,278,902.95-31,922,837.76-6,900,849.63

Finding the Fourth Proportional to 21,278,902.95, 31,922,837.76 and 6,900,849.63

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Solution

The fourth proportional to 21,278,902.95, 31,922,837.76 and 6,900,849.63 is: 10,352,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,902.95 : 31,922,837.76 = 6,900,849.63 : x
  2. Step 2: Convert to fraction form
    21,278,902.95/31,922,837.76 = 6,900,849.63/x
  3. Step 3: Cross multiply
    21,278,902.95x = 31,922,837.76 × 6,900,849.63
  4. Step 4: Simplify right side
    21,278,902.95x = 220,294,703,144,646.03
  5. Step 5: Solve for x
    x = 220,294,703,144,646.03/21,278,902.95
  6. Step 6: Final answer
    x = 10,352,728.41

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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.