Home / 403,603,165.59-556,972,347.21-217,964,163.39

Finding the Fourth Proportional to 403,603,165.59, 556,972,347.21 and 217,964,163.39

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Solution

The fourth proportional to 403,603,165.59, 556,972,347.21 and 217,964,163.39 is: 300,790,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,165.59 : 556,972,347.21 = 217,964,163.39 : x
  2. Step 2: Convert to fraction form
    403,603,165.59/556,972,347.21 = 217,964,163.39/x
  3. Step 3: Cross multiply
    403,603,165.59x = 556,972,347.21 × 217,964,163.39
  4. Step 4: Simplify right side
    403,603,165.59x = 121,400,011,690,992,256
  5. Step 5: Solve for x
    x = 121,400,011,690,992,256/403,603,165.59
  6. Step 6: Final answer
    x = 300,790,533.97

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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.