Home / 369,640,564.65-509,943,855.83-222,881,317.29

Finding the Fourth Proportional to 369,640,564.65, 509,943,855.83 and 222,881,317.29

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Solution

The fourth proportional to 369,640,564.65, 509,943,855.83 and 222,881,317.29 is: 307,479,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,640,564.65 : 509,943,855.83 = 222,881,317.29 : x
  2. Step 2: Convert to fraction form
    369,640,564.65/509,943,855.83 = 222,881,317.29/x
  3. Step 3: Cross multiply
    369,640,564.65x = 509,943,855.83 × 222,881,317.29
  4. Step 4: Simplify right side
    369,640,564.65x = 113,656,958,330,217,840
  5. Step 5: Solve for x
    x = 113,656,958,330,217,840/369,640,564.65
  6. Step 6: Final answer
    x = 307,479,668.63

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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.