Home / 91,684,340-126,521,907.38-51,999,149.18

Finding the Fourth Proportional to 91,684,340, 126,521,907.38 and 51,999,149.18

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Solution

The fourth proportional to 91,684,340, 126,521,907.38 and 51,999,149.18 is: 71,757,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,684,340 : 126,521,907.38 = 51,999,149.18 : x
  2. Step 2: Convert to fraction form
    91,684,340/126,521,907.38 = 51,999,149.18/x
  3. Step 3: Cross multiply
    91,684,340x = 126,521,907.38 × 51,999,149.18
  4. Step 4: Simplify right side
    91,684,340x = 6,579,031,536,390,763
  5. Step 5: Solve for x
    x = 6,579,031,536,390,763/91,684,340
  6. Step 6: Final answer
    x = 71,757,418.29

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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.