Home / 13,479,322.20-20,205,205.20-6,645,384.60

Finding the Fourth Proportional to 13,479,322.20, 20,205,205.20 and 6,645,384.60

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Solution

The fourth proportional to 13,479,322.20, 20,205,205.20 and 6,645,384.60 is: 9,961,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,322.20 : 20,205,205.20 = 6,645,384.60 : x
  2. Step 2: Convert to fraction form
    13,479,322.20/20,205,205.20 = 6,645,384.60/x
  3. Step 3: Cross multiply
    13,479,322.20x = 20,205,205.20 × 6,645,384.60
  4. Step 4: Simplify right side
    13,479,322.20x = 134,271,359,475,919.91
  5. Step 5: Solve for x
    x = 134,271,359,475,919.91/13,479,322.20
  6. Step 6: Final answer
    x = 9,961,284.22

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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.