Home / 403,619,338.20-605,429,007.30-219,475,031.70

Finding the Fourth Proportional to 403,619,338.20, 605,429,007.30 and 219,475,031.70

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Solution

The fourth proportional to 403,619,338.20, 605,429,007.30 and 219,475,031.70 is: 329,212,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,619,338.20 : 605,429,007.30 = 219,475,031.70 : x
  2. Step 2: Convert to fraction form
    403,619,338.20/605,429,007.30 = 219,475,031.70/x
  3. Step 3: Cross multiply
    403,619,338.20x = 605,429,007.30 × 219,475,031.70
  4. Step 4: Simplify right side
    403,619,338.20x = 132,876,550,569,267,008
  5. Step 5: Solve for x
    x = 132,876,550,569,267,008/403,619,338.20
  6. Step 6: Final answer
    x = 329,212,547.55

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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.