Home / 13,176,470.40-19,765,627.20-5,197,257.60

Finding the Fourth Proportional to 13,176,470.40, 19,765,627.20 and 5,197,257.60

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Solution

The fourth proportional to 13,176,470.40, 19,765,627.20 and 5,197,257.60 is: 7,796,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176,470.40 : 19,765,627.20 = 5,197,257.60 : x
  2. Step 2: Convert to fraction form
    13,176,470.40/19,765,627.20 = 5,197,257.60/x
  3. Step 3: Cross multiply
    13,176,470.40x = 19,765,627.20 × 5,197,257.60
  4. Step 4: Simplify right side
    13,176,470.40x = 102,727,056,183,966.70
  5. Step 5: Solve for x
    x = 102,727,056,183,966.70/13,176,470.40
  6. Step 6: Final answer
    x = 7,796,249.91

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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.