Home / 20,415,060.20-30,622,590.30-12,856,788.20

Finding the Fourth Proportional to 20,415,060.20, 30,622,590.30 and 12,856,788.20

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Solution

The fourth proportional to 20,415,060.20, 30,622,590.30 and 12,856,788.20 is: 19,285,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,060.20 : 30,622,590.30 = 12,856,788.20 : x
  2. Step 2: Convert to fraction form
    20,415,060.20/30,622,590.30 = 12,856,788.20/x
  3. Step 3: Cross multiply
    20,415,060.20x = 30,622,590.30 × 12,856,788.20
  4. Step 4: Simplify right side
    20,415,060.20x = 393,708,157,622,474.44
  5. Step 5: Solve for x
    x = 393,708,157,622,474.44/20,415,060.20
  6. Step 6: Final answer
    x = 19,285,182.30

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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.