Home / 505,202,540.80-757,803,811.20-442,720,825.60

Finding the Fourth Proportional to 505,202,540.80, 757,803,811.20 and 442,720,825.60

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Solution

The fourth proportional to 505,202,540.80, 757,803,811.20 and 442,720,825.60 is: 664,081,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,202,540.80 : 757,803,811.20 = 442,720,825.60 : x
  2. Step 2: Convert to fraction form
    505,202,540.80/757,803,811.20 = 442,720,825.60/x
  3. Step 3: Cross multiply
    505,202,540.80x = 757,803,811.20 × 442,720,825.60
  4. Step 4: Simplify right side
    505,202,540.80x = 335,495,528,937,290,560
  5. Step 5: Solve for x
    x = 335,495,528,937,290,560/505,202,540.80
  6. Step 6: Final answer
    x = 664,081,238.40

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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.