Home / 20,264,229.12-30,403,069.80-6,617,820.72

Finding the Fourth Proportional to 20,264,229.12, 30,403,069.80 and 6,617,820.72

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Solution

The fourth proportional to 20,264,229.12, 30,403,069.80 and 6,617,820.72 is: 9,928,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264,229.12 : 30,403,069.80 = 6,617,820.72 : x
  2. Step 2: Convert to fraction form
    20,264,229.12/30,403,069.80 = 6,617,820.72/x
  3. Step 3: Cross multiply
    20,264,229.12x = 30,403,069.80 × 6,617,820.72
  4. Step 4: Simplify right side
    20,264,229.12x = 201,202,065,274,046.25
  5. Step 5: Solve for x
    x = 201,202,065,274,046.25/20,264,229.12
  6. Step 6: Final answer
    x = 9,928,927.67

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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.