Home / 257,254,247.78-385,880,608.19-73,021,879.85

Finding the Fourth Proportional to 257,254,247.78, 385,880,608.19 and 73,021,879.85

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Solution

The fourth proportional to 257,254,247.78, 385,880,608.19 and 73,021,879.85 is: 109,532,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,254,247.78 : 385,880,608.19 = 73,021,879.85 : x
  2. Step 2: Convert to fraction form
    257,254,247.78/385,880,608.19 = 73,021,879.85/x
  3. Step 3: Cross multiply
    257,254,247.78x = 385,880,608.19 × 73,021,879.85
  4. Step 4: Simplify right side
    257,254,247.78x = 28,177,727,405,400,592
  5. Step 5: Solve for x
    x = 28,177,727,405,400,592/257,254,247.78
  6. Step 6: Final answer
    x = 109,532,603.05

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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.