Home / 409,150,218.36-613,730,646-136,520,985.36

Finding the Fourth Proportional to 409,150,218.36, 613,730,646 and 136,520,985.36

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Solution

The fourth proportional to 409,150,218.36, 613,730,646 and 136,520,985.36 is: 204,783,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,150,218.36 : 613,730,646 = 136,520,985.36 : x
  2. Step 2: Convert to fraction form
    409,150,218.36/613,730,646 = 136,520,985.36/x
  3. Step 3: Cross multiply
    409,150,218.36x = 613,730,646 × 136,520,985.36
  4. Step 4: Simplify right side
    409,150,218.36x = 83,787,112,537,549,344
  5. Step 5: Solve for x
    x = 83,787,112,537,549,344/409,150,218.36
  6. Step 6: Final answer
    x = 204,783,252.65

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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.