Home / 128,500,693.44-192,821,762.88-55,718,033.28

Finding the Fourth Proportional to 128,500,693.44, 192,821,762.88 and 55,718,033.28

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Solution

The fourth proportional to 128,500,693.44, 192,821,762.88 and 55,718,033.28 is: 83,607,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,500,693.44 : 192,821,762.88 = 55,718,033.28 : x
  2. Step 2: Convert to fraction form
    128,500,693.44/192,821,762.88 = 55,718,033.28/x
  3. Step 3: Cross multiply
    128,500,693.44x = 192,821,762.88 × 55,718,033.28
  4. Step 4: Simplify right side
    128,500,693.44x = 10,743,649,401,256,108
  5. Step 5: Solve for x
    x = 10,743,649,401,256,108/128,500,693.44
  6. Step 6: Final answer
    x = 83,607,715.36

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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.