Home / 13,166,221.20-19,749,331.80-12,369,059.70

Finding the Fourth Proportional to 13,166,221.20, 19,749,331.80 and 12,369,059.70

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Solution

The fourth proportional to 13,166,221.20, 19,749,331.80 and 12,369,059.70 is: 18,553,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,221.20 : 19,749,331.80 = 12,369,059.70 : x
  2. Step 2: Convert to fraction form
    13,166,221.20/19,749,331.80 = 12,369,059.70/x
  3. Step 3: Cross multiply
    13,166,221.20x = 19,749,331.80 × 12,369,059.70
  4. Step 4: Simplify right side
    13,166,221.20x = 244,280,664,069,308.47
  5. Step 5: Solve for x
    x = 244,280,664,069,308.47/13,166,221.20
  6. Step 6: Final answer
    x = 18,553,589.55

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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.