Home / 481,004,067.20-721,506,100.80-412,129,313.60

Finding the Fourth Proportional to 481,004,067.20, 721,506,100.80 and 412,129,313.60

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Solution

The fourth proportional to 481,004,067.20, 721,506,100.80 and 412,129,313.60 is: 618,193,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,004,067.20 : 721,506,100.80 = 412,129,313.60 : x
  2. Step 2: Convert to fraction form
    481,004,067.20/721,506,100.80 = 412,129,313.60/x
  3. Step 3: Cross multiply
    481,004,067.20x = 721,506,100.80 × 412,129,313.60
  4. Step 4: Simplify right side
    481,004,067.20x = 297,353,814,080,916,416
  5. Step 5: Solve for x
    x = 297,353,814,080,916,416/481,004,067.20
  6. Step 6: Final answer
    x = 618,193,970.40

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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.