Home / 10,221,406.20-15,332,109.30-7,670,489.40

Finding the Fourth Proportional to 10,221,406.20, 15,332,109.30 and 7,670,489.40

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Solution

The fourth proportional to 10,221,406.20, 15,332,109.30 and 7,670,489.40 is: 11,505,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221,406.20 : 15,332,109.30 = 7,670,489.40 : x
  2. Step 2: Convert to fraction form
    10,221,406.20/15,332,109.30 = 7,670,489.40/x
  3. Step 3: Cross multiply
    10,221,406.20x = 15,332,109.30 × 7,670,489.40
  4. Step 4: Simplify right side
    10,221,406.20x = 117,604,781,865,291.44
  5. Step 5: Solve for x
    x = 117,604,781,865,291.44/10,221,406.20
  6. Step 6: Final answer
    x = 11,505,734.10

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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.