Home / 319,436,123.19-440,822,144.75-172,758,407.19

Finding the Fourth Proportional to 319,436,123.19, 440,822,144.75 and 172,758,407.19

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Solution

The fourth proportional to 319,436,123.19, 440,822,144.75 and 172,758,407.19 is: 238,406,761.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,436,123.19 : 440,822,144.75 = 172,758,407.19 : x
  2. Step 2: Convert to fraction form
    319,436,123.19/440,822,144.75 = 172,758,407.19/x
  3. Step 3: Cross multiply
    319,436,123.19x = 440,822,144.75 × 172,758,407.19
  4. Step 4: Simplify right side
    319,436,123.19x = 76,155,731,580,225,824
  5. Step 5: Solve for x
    x = 76,155,731,580,225,824/319,436,123.19
  6. Step 6: Final answer
    x = 238,406,761.33

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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.