Home / 12,290,515.60-18,435,773.40-6,621,811.60

Finding the Fourth Proportional to 12,290,515.60, 18,435,773.40 and 6,621,811.60

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Solution

The fourth proportional to 12,290,515.60, 18,435,773.40 and 6,621,811.60 is: 9,932,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,515.60 : 18,435,773.40 = 6,621,811.60 : x
  2. Step 2: Convert to fraction form
    12,290,515.60/18,435,773.40 = 6,621,811.60/x
  3. Step 3: Cross multiply
    12,290,515.60x = 18,435,773.40 × 6,621,811.60
  4. Step 4: Simplify right side
    12,290,515.60x = 122,078,218,155,091.42
  5. Step 5: Solve for x
    x = 122,078,218,155,091.42/12,290,515.60
  6. Step 6: Final answer
    x = 9,932,717.40

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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.