Home / 817,350,012.56-1,225,296,090.84-299,659,818.80

Finding the Fourth Proportional to 817,350,012.56, 1,225,296,090.84 and 299,659,818.80

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Solution

The fourth proportional to 817,350,012.56, 1,225,296,090.84 and 299,659,818.80 is: 449,222,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,350,012.56 : 1,225,296,090.84 = 299,659,818.80 : x
  2. Step 2: Convert to fraction form
    817,350,012.56/1,225,296,090.84 = 299,659,818.80/x
  3. Step 3: Cross multiply
    817,350,012.56x = 1,225,296,090.84 × 299,659,818.80
  4. Step 4: Simplify right side
    817,350,012.56x = 367,172,004,557,462,720
  5. Step 5: Solve for x
    x = 367,172,004,557,462,720/817,350,012.56
  6. Step 6: Final answer
    x = 449,222,485.98

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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.