Home / 403,589,108.88-556,952,967-217,950,108.12

Finding the Fourth Proportional to 403,589,108.88, 556,952,967 and 217,950,108.12

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Solution

The fourth proportional to 403,589,108.88, 556,952,967 and 217,950,108.12 is: 300,771,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,589,108.88 : 556,952,967 = 217,950,108.12 : x
  2. Step 2: Convert to fraction form
    403,589,108.88/556,952,967 = 217,950,108.12/x
  3. Step 3: Cross multiply
    403,589,108.88x = 556,952,967 × 217,950,108.12
  4. Step 4: Simplify right side
    403,589,108.88x = 121,387,959,375,404,800
  5. Step 5: Solve for x
    x = 121,387,959,375,404,800/403,589,108.88
  6. Step 6: Final answer
    x = 300,771,147.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.