Home / 20,213,214.30-30,319,821.45-7,431,074.10

Finding the Fourth Proportional to 20,213,214.30, 30,319,821.45 and 7,431,074.10

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Solution

The fourth proportional to 20,213,214.30, 30,319,821.45 and 7,431,074.10 is: 11,146,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,214.30 : 30,319,821.45 = 7,431,074.10 : x
  2. Step 2: Convert to fraction form
    20,213,214.30/30,319,821.45 = 7,431,074.10/x
  3. Step 3: Cross multiply
    20,213,214.30x = 30,319,821.45 × 7,431,074.10
  4. Step 4: Simplify right side
    20,213,214.30x = 225,308,839,893,719.44
  5. Step 5: Solve for x
    x = 225,308,839,893,719.44/20,213,214.30
  6. Step 6: Final answer
    x = 11,146,611.15

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1.5x scale

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.