Home / 275,256,163.47-412,821,151.56-78,515,831.91

Finding the Fourth Proportional to 275,256,163.47, 412,821,151.56 and 78,515,831.91

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Solution

The fourth proportional to 275,256,163.47, 412,821,151.56 and 78,515,831.91 is: 117,755,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,256,163.47 : 412,821,151.56 = 78,515,831.91 : x
  2. Step 2: Convert to fraction form
    275,256,163.47/412,821,151.56 = 78,515,831.91/x
  3. Step 3: Cross multiply
    275,256,163.47x = 412,821,151.56 × 78,515,831.91
  4. Step 4: Simplify right side
    275,256,163.47x = 32,412,996,144,777,592
  5. Step 5: Solve for x
    x = 32,412,996,144,777,592/275,256,163.47
  6. Step 6: Final answer
    x = 117,755,750.63

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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.