Home / 578,047,243.36-866,876,494.56-209,505,049.60

Finding the Fourth Proportional to 578,047,243.36, 866,876,494.56 and 209,505,049.60

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Solution

The fourth proportional to 578,047,243.36, 866,876,494.56 and 209,505,049.60 is: 314,187,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,047,243.36 : 866,876,494.56 = 209,505,049.60 : x
  2. Step 2: Convert to fraction form
    578,047,243.36/866,876,494.56 = 209,505,049.60/x
  3. Step 3: Cross multiply
    578,047,243.36x = 866,876,494.56 × 209,505,049.60
  4. Step 4: Simplify right side
    578,047,243.36x = 181,615,002,989,866,912
  5. Step 5: Solve for x
    x = 181,615,002,989,866,912/578,047,243.36
  6. Step 6: Final answer
    x = 314,187,127.57

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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.