Home / 12,191,018.40-18,285,944.40-4,103,200.80

Finding the Fourth Proportional to 12,191,018.40, 18,285,944.40 and 4,103,200.80

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Solution

The fourth proportional to 12,191,018.40, 18,285,944.40 and 4,103,200.80 is: 6,154,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,018.40 : 18,285,944.40 = 4,103,200.80 : x
  2. Step 2: Convert to fraction form
    12,191,018.40/18,285,944.40 = 4,103,200.80/x
  3. Step 3: Cross multiply
    12,191,018.40x = 18,285,944.40 × 4,103,200.80
  4. Step 4: Simplify right side
    12,191,018.40x = 75,030,901,690,835.52
  5. Step 5: Solve for x
    x = 75,030,901,690,835.52/12,191,018.40
  6. Step 6: Final answer
    x = 6,154,604.91

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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.