Home / 72,649,151.44-109,000,299.24-33,806,128.78

Finding the Fourth Proportional to 72,649,151.44, 109,000,299.24 and 33,806,128.78

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Solution

The fourth proportional to 72,649,151.44, 109,000,299.24 and 33,806,128.78 is: 50,721,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,649,151.44 : 109,000,299.24 = 33,806,128.78 : x
  2. Step 2: Convert to fraction form
    72,649,151.44/109,000,299.24 = 33,806,128.78/x
  3. Step 3: Cross multiply
    72,649,151.44x = 109,000,299.24 × 33,806,128.78
  4. Step 4: Simplify right side
    72,649,151.44x = 3,684,878,153,165,976
  5. Step 5: Solve for x
    x = 3,684,878,153,165,976/72,649,151.44
  6. Step 6: Final answer
    x = 50,721,558.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.