Home / 21,278,901.20-31,922,835.15-6,900,847.87

Finding the Fourth Proportional to 21,278,901.20, 31,922,835.15 and 6,900,847.87

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Solution

The fourth proportional to 21,278,901.20, 31,922,835.15 and 6,900,847.87 is: 10,352,725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,901.20 : 31,922,835.15 = 6,900,847.87 : x
  2. Step 2: Convert to fraction form
    21,278,901.20/31,922,835.15 = 6,900,847.87/x
  3. Step 3: Cross multiply
    21,278,901.20x = 31,922,835.15 × 6,900,847.87
  4. Step 4: Simplify right side
    21,278,901.20x = 220,294,628,755,120.22
  5. Step 5: Solve for x
    x = 220,294,628,755,120.22/21,278,901.20
  6. Step 6: Final answer
    x = 10,352,725.77

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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.