Home / 403,589,108.10-556,952,965.90-217,950,107.39

Finding the Fourth Proportional to 403,589,108.10, 556,952,965.90 and 217,950,107.39

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Solution

The fourth proportional to 403,589,108.10, 556,952,965.90 and 217,950,107.39 is: 300,771,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,589,108.10 : 556,952,965.90 = 217,950,107.39 : x
  2. Step 2: Convert to fraction form
    403,589,108.10/556,952,965.90 = 217,950,107.39/x
  3. Step 3: Cross multiply
    403,589,108.10x = 556,952,965.90 × 217,950,107.39
  4. Step 4: Simplify right side
    403,589,108.10x = 121,387,958,725,754,368
  5. Step 5: Solve for x
    x = 121,387,958,725,754,368/403,589,108.10
  6. Step 6: Final answer
    x = 300,771,146.42

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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.