Home / 30,207,962.20-45,311,943.30-18,728,836.60

Finding the Fourth Proportional to 30,207,962.20, 45,311,943.30 and 18,728,836.60

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Solution

The fourth proportional to 30,207,962.20, 45,311,943.30 and 18,728,836.60 is: 28,093,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,962.20 : 45,311,943.30 = 18,728,836.60 : x
  2. Step 2: Convert to fraction form
    30,207,962.20/45,311,943.30 = 18,728,836.60/x
  3. Step 3: Cross multiply
    30,207,962.20x = 45,311,943.30 × 18,728,836.60
  4. Step 4: Simplify right side
    30,207,962.20x = 848,639,982,094,164.75
  5. Step 5: Solve for x
    x = 848,639,982,094,164.75/30,207,962.20
  6. Step 6: Final answer
    x = 28,093,254.90

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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.