Home / 8,214,103.40-12,321,155.10-3,420,199.40

Finding the Fourth Proportional to 8,214,103.40, 12,321,155.10 and 3,420,199.40

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Solution

The fourth proportional to 8,214,103.40, 12,321,155.10 and 3,420,199.40 is: 5,130,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214,103.40 : 12,321,155.10 = 3,420,199.40 : x
  2. Step 2: Convert to fraction form
    8,214,103.40/12,321,155.10 = 3,420,199.40/x
  3. Step 3: Cross multiply
    8,214,103.40x = 12,321,155.10 × 3,420,199.40
  4. Step 4: Simplify right side
    8,214,103.40x = 42,140,807,280,326.94
  5. Step 5: Solve for x
    x = 42,140,807,280,326.94/8,214,103.40
  6. Step 6: Final answer
    x = 5,130,299.10

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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.