Home / 11,217,765.20-16,826,647.80-7,178,813.60

Finding the Fourth Proportional to 11,217,765.20, 16,826,647.80 and 7,178,813.60

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Solution

The fourth proportional to 11,217,765.20, 16,826,647.80 and 7,178,813.60 is: 10,768,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217,765.20 : 16,826,647.80 = 7,178,813.60 : x
  2. Step 2: Convert to fraction form
    11,217,765.20/16,826,647.80 = 7,178,813.60/x
  3. Step 3: Cross multiply
    11,217,765.20x = 16,826,647.80 × 7,178,813.60
  4. Step 4: Simplify right side
    11,217,765.20x = 120,795,368,069,050.08
  5. Step 5: Solve for x
    x = 120,795,368,069,050.08/11,217,765.20
  6. Step 6: Final answer
    x = 10,768,220.40

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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.