Home / 485,052,458.40-727,684,975.80-239,526,716.40

Finding the Fourth Proportional to 485,052,458.40, 727,684,975.80 and 239,526,716.40

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Solution

The fourth proportional to 485,052,458.40, 727,684,975.80 and 239,526,716.40 is: 359,342,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,052,458.40 : 727,684,975.80 = 239,526,716.40 : x
  2. Step 2: Convert to fraction form
    485,052,458.40/727,684,975.80 = 239,526,716.40/x
  3. Step 3: Cross multiply
    485,052,458.40x = 727,684,975.80 × 239,526,716.40
  4. Step 4: Simplify right side
    485,052,458.40x = 174,299,992,826,987,456
  5. Step 5: Solve for x
    x = 174,299,992,826,987,456/485,052,458.40
  6. Step 6: Final answer
    x = 359,342,561.43

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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.