Home / 247,191,864.60-370,787,796.90-138,352,747.80

Finding the Fourth Proportional to 247,191,864.60, 370,787,796.90 and 138,352,747.80

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Solution

The fourth proportional to 247,191,864.60, 370,787,796.90 and 138,352,747.80 is: 207,529,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,191,864.60 : 370,787,796.90 = 138,352,747.80 : x
  2. Step 2: Convert to fraction form
    247,191,864.60/370,787,796.90 = 138,352,747.80/x
  3. Step 3: Cross multiply
    247,191,864.60x = 370,787,796.90 × 138,352,747.80
  4. Step 4: Simplify right side
    247,191,864.60x = 51,299,510,551,823,320
  5. Step 5: Solve for x
    x = 51,299,510,551,823,320/247,191,864.60
  6. Step 6: Final answer
    x = 207,529,121.70

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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.