Home / 319,421,012.54-440,802,325.64-172,743,296.54

Finding the Fourth Proportional to 319,421,012.54, 440,802,325.64 and 172,743,296.54

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Solution

The fourth proportional to 319,421,012.54, 440,802,325.64 and 172,743,296.54 is: 238,386,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,012.54 : 440,802,325.64 = 172,743,296.54 : x
  2. Step 2: Convert to fraction form
    319,421,012.54/440,802,325.64 = 172,743,296.54/x
  3. Step 3: Cross multiply
    319,421,012.54x = 440,802,325.64 × 172,743,296.54
  4. Step 4: Simplify right side
    319,421,012.54x = 76,145,646,853,552,160
  5. Step 5: Solve for x
    x = 76,145,646,853,552,160/319,421,012.54
  6. Step 6: Final answer
    x = 238,386,467.59

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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.