Home / 30,207,958.20-45,311,937.30-18,728,832.60

Finding the Fourth Proportional to 30,207,958.20, 45,311,937.30 and 18,728,832.60

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Solution

The fourth proportional to 30,207,958.20, 45,311,937.30 and 18,728,832.60 is: 28,093,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,958.20 : 45,311,937.30 = 18,728,832.60 : x
  2. Step 2: Convert to fraction form
    30,207,958.20/45,311,937.30 = 18,728,832.60/x
  3. Step 3: Cross multiply
    30,207,958.20x = 45,311,937.30 × 18,728,832.60
  4. Step 4: Simplify right side
    30,207,958.20x = 848,639,688,473,396
  5. Step 5: Solve for x
    x = 848,639,688,473,396/30,207,958.20
  6. Step 6: Final answer
    x = 28,093,248.90

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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.