Home / 856,220,319.99-1,181,682,061.68-479,978,525.97

Finding the Fourth Proportional to 856,220,319.99, 1,181,682,061.68 and 479,978,525.97

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Solution

The fourth proportional to 856,220,319.99, 1,181,682,061.68 and 479,978,525.97 is: 662,425,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,220,319.99 : 1,181,682,061.68 = 479,978,525.97 : x
  2. Step 2: Convert to fraction form
    856,220,319.99/1,181,682,061.68 = 479,978,525.97/x
  3. Step 3: Cross multiply
    856,220,319.99x = 1,181,682,061.68 × 479,978,525.97
  4. Step 4: Simplify right side
    856,220,319.99x = 567,182,014,130,357,056
  5. Step 5: Solve for x
    x = 567,182,014,130,357,056/856,220,319.99
  6. Step 6: Final answer
    x = 662,425,313.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.