Home / 403,835,729.24-557,293,307.42-218,196,744.92

Finding the Fourth Proportional to 403,835,729.24, 557,293,307.42 and 218,196,744.92

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Solution

The fourth proportional to 403,835,729.24, 557,293,307.42 and 218,196,744.92 is: 301,111,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,835,729.24 : 557,293,307.42 = 218,196,744.92 : x
  2. Step 2: Convert to fraction form
    403,835,729.24/557,293,307.42 = 218,196,744.92/x
  3. Step 3: Cross multiply
    403,835,729.24x = 557,293,307.42 × 218,196,744.92
  4. Step 4: Simplify right side
    403,835,729.24x = 121,599,585,647,116,000
  5. Step 5: Solve for x
    x = 121,599,585,647,116,000/403,835,729.24
  6. Step 6: Final answer
    x = 301,111,508.58

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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.