Home / 30,226,912.20-45,340,368.30-12,288,889.80

Finding the Fourth Proportional to 30,226,912.20, 45,340,368.30 and 12,288,889.80

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Solution

The fourth proportional to 30,226,912.20, 45,340,368.30 and 12,288,889.80 is: 18,433,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226,912.20 : 45,340,368.30 = 12,288,889.80 : x
  2. Step 2: Convert to fraction form
    30,226,912.20/45,340,368.30 = 12,288,889.80/x
  3. Step 3: Cross multiply
    30,226,912.20x = 45,340,368.30 × 12,288,889.80
  4. Step 4: Simplify right side
    30,226,912.20x = 557,182,789,530,113.31
  5. Step 5: Solve for x
    x = 557,182,789,530,113.31/30,226,912.20
  6. Step 6: Final answer
    x = 18,433,334.70

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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.