Home / 7,858,164.20-11,787,246.30-2,809,639.40

Finding the Fourth Proportional to 7,858,164.20, 11,787,246.30 and 2,809,639.40

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Solution

The fourth proportional to 7,858,164.20, 11,787,246.30 and 2,809,639.40 is: 4,214,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858,164.20 : 11,787,246.30 = 2,809,639.40 : x
  2. Step 2: Convert to fraction form
    7,858,164.20/11,787,246.30 = 2,809,639.40/x
  3. Step 3: Cross multiply
    7,858,164.20x = 11,787,246.30 × 2,809,639.40
  4. Step 4: Simplify right side
    7,858,164.20x = 33,117,911,621,984.22
  5. Step 5: Solve for x
    x = 33,117,911,621,984.22/7,858,164.20
  6. Step 6: Final answer
    x = 4,214,459.10

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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.