Home / 13,171,880.80-19,757,821.20-8,651,497.60

Finding the Fourth Proportional to 13,171,880.80, 19,757,821.20 and 8,651,497.60

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Solution

The fourth proportional to 13,171,880.80, 19,757,821.20 and 8,651,497.60 is: 12,977,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171,880.80 : 19,757,821.20 = 8,651,497.60 : x
  2. Step 2: Convert to fraction form
    13,171,880.80/19,757,821.20 = 8,651,497.60/x
  3. Step 3: Cross multiply
    13,171,880.80x = 19,757,821.20 × 8,651,497.60
  4. Step 4: Simplify right side
    13,171,880.80x = 170,934,742,693,029.09
  5. Step 5: Solve for x
    x = 170,934,742,693,029.09/13,171,880.80
  6. Step 6: Final answer
    x = 12,977,246.40

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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.