Home / 20,229,870.80-30,344,806.20-7,447,730.60

Finding the Fourth Proportional to 20,229,870.80, 30,344,806.20 and 7,447,730.60

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Solution

The fourth proportional to 20,229,870.80, 30,344,806.20 and 7,447,730.60 is: 11,171,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,870.80 : 30,344,806.20 = 7,447,730.60 : x
  2. Step 2: Convert to fraction form
    20,229,870.80/30,344,806.20 = 7,447,730.60/x
  3. Step 3: Cross multiply
    20,229,870.80x = 30,344,806.20 × 7,447,730.60
  4. Step 4: Simplify right side
    20,229,870.80x = 225,999,941,686,809.72
  5. Step 5: Solve for x
    x = 225,999,941,686,809.72/20,229,870.80
  6. Step 6: Final answer
    x = 11,171,595.90

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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.