Home / 448,565,986.80-671,505,287.40-266,719,561.20

Finding the Fourth Proportional to 448,565,986.80, 671,505,287.40 and 266,719,561.20

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Solution

The fourth proportional to 448,565,986.80, 671,505,287.40 and 266,719,561.20 is: 399,280,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,565,986.80 : 671,505,287.40 = 266,719,561.20 : x
  2. Step 2: Convert to fraction form
    448,565,986.80/671,505,287.40 = 266,719,561.20/x
  3. Step 3: Cross multiply
    448,565,986.80x = 671,505,287.40 × 266,719,561.20
  4. Step 4: Simplify right side
    448,565,986.80x = 179,103,595,598,807,872
  5. Step 5: Solve for x
    x = 179,103,595,598,807,872/448,565,986.80
  6. Step 6: Final answer
    x = 399,280,375.39

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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.