Home / 20,669,870.80-31,004,806.20-6,292,824.40

Finding the Fourth Proportional to 20,669,870.80, 31,004,806.20 and 6,292,824.40

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Solution

The fourth proportional to 20,669,870.80, 31,004,806.20 and 6,292,824.40 is: 9,439,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,870.80 : 31,004,806.20 = 6,292,824.40 : x
  2. Step 2: Convert to fraction form
    20,669,870.80/31,004,806.20 = 6,292,824.40/x
  3. Step 3: Cross multiply
    20,669,870.80x = 31,004,806.20 × 6,292,824.40
  4. Step 4: Simplify right side
    20,669,870.80x = 195,107,800,972,631.28
  5. Step 5: Solve for x
    x = 195,107,800,972,631.28/20,669,870.80
  6. Step 6: Final answer
    x = 9,439,236.60

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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.