Home / 101,137,420.51-139,569,882.92-54,728,172.43

Finding the Fourth Proportional to 101,137,420.51, 139,569,882.92 and 54,728,172.43

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Solution

The fourth proportional to 101,137,420.51, 139,569,882.92 and 54,728,172.43 is: 75,525,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,137,420.51 : 139,569,882.92 = 54,728,172.43 : x
  2. Step 2: Convert to fraction form
    101,137,420.51/139,569,882.92 = 54,728,172.43/x
  3. Step 3: Cross multiply
    101,137,420.51x = 139,569,882.92 × 54,728,172.43
  4. Step 4: Simplify right side
    101,137,420.51x = 7,638,404,618,207,031
  5. Step 5: Solve for x
    x = 7,638,404,618,207,031/101,137,420.51
  6. Step 6: Final answer
    x = 75,525,009.24

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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.