Home / 726,492,048.20-1,089,738,072.30-508,388,661.80

Finding the Fourth Proportional to 726,492,048.20, 1,089,738,072.30 and 508,388,661.80

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Solution

The fourth proportional to 726,492,048.20, 1,089,738,072.30 and 508,388,661.80 is: 762,582,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,048.20 : 1,089,738,072.30 = 508,388,661.80 : x
  2. Step 2: Convert to fraction form
    726,492,048.20/1,089,738,072.30 = 508,388,661.80/x
  3. Step 3: Cross multiply
    726,492,048.20x = 1,089,738,072.30 × 508,388,661.80
  4. Step 4: Simplify right side
    726,492,048.20x = 554,010,480,289,108,608
  5. Step 5: Solve for x
    x = 554,010,480,289,108,608/726,492,048.20
  6. Step 6: Final answer
    x = 762,582,992.70

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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.