Home / 403,603,162.62-556,972,343.04-217,964,160.42

Finding the Fourth Proportional to 403,603,162.62, 556,972,343.04 and 217,964,160.42

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Solution

The fourth proportional to 403,603,162.62, 556,972,343.04 and 217,964,160.42 is: 300,790,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,162.62 : 556,972,343.04 = 217,964,160.42 : x
  2. Step 2: Convert to fraction form
    403,603,162.62/556,972,343.04 = 217,964,160.42/x
  3. Step 3: Cross multiply
    403,603,162.62x = 556,972,343.04 × 217,964,160.42
  4. Step 4: Simplify right side
    403,603,162.62x = 121,400,009,127,873,808
  5. Step 5: Solve for x
    x = 121,400,009,127,873,808/403,603,162.62
  6. Step 6: Final answer
    x = 300,790,529.84

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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.