Home / 409,150,216.86-613,730,643.75-136,520,983.86

Finding the Fourth Proportional to 409,150,216.86, 613,730,643.75 and 136,520,983.86

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Solution

The fourth proportional to 409,150,216.86, 613,730,643.75 and 136,520,983.86 is: 204,783,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,150,216.86 : 613,730,643.75 = 136,520,983.86 : x
  2. Step 2: Convert to fraction form
    409,150,216.86/613,730,643.75 = 136,520,983.86/x
  3. Step 3: Cross multiply
    409,150,216.86x = 613,730,643.75 × 136,520,983.86
  4. Step 4: Simplify right side
    409,150,216.86x = 83,787,111,309,781,168
  5. Step 5: Solve for x
    x = 83,787,111,309,781,168/409,150,216.86
  6. Step 6: Final answer
    x = 204,783,250.40

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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.