Home / 21,278,923.22-31,922,868.15-6,900,869.90

Finding the Fourth Proportional to 21,278,923.22, 31,922,868.15 and 6,900,869.90

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Solution

The fourth proportional to 21,278,923.22, 31,922,868.15 and 6,900,869.90 is: 10,352,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,923.22 : 31,922,868.15 = 6,900,869.90 : x
  2. Step 2: Convert to fraction form
    21,278,923.22/31,922,868.15 = 6,900,869.90/x
  3. Step 3: Cross multiply
    21,278,923.22x = 31,922,868.15 × 6,900,869.90
  4. Step 4: Simplify right side
    21,278,923.22x = 220,295,559,778,389.31
  5. Step 5: Solve for x
    x = 220,295,559,778,389.31/21,278,923.22
  6. Step 6: Final answer
    x = 10,352,758.81

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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.