Home / 7,190,916.45-9,923,405.73-3,927,733.23

Finding the Fourth Proportional to 7,190,916.45, 9,923,405.73 and 3,927,733.23

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Solution

The fourth proportional to 7,190,916.45, 9,923,405.73 and 3,927,733.23 is: 5,420,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,916.45 : 9,923,405.73 = 3,927,733.23 : x
  2. Step 2: Convert to fraction form
    7,190,916.45/9,923,405.73 = 3,927,733.23/x
  3. Step 3: Cross multiply
    7,190,916.45x = 9,923,405.73 × 3,927,733.23
  4. Step 4: Simplify right side
    7,190,916.45x = 38,976,490,485,070.68
  5. Step 5: Solve for x
    x = 38,976,490,485,070.68/7,190,916.45
  6. Step 6: Final answer
    x = 5,420,239.66

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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.