Home / 315,945,796.76-473,939,489.22-82,782,217.88

Finding the Fourth Proportional to 315,945,796.76, 473,939,489.22 and 82,782,217.88

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Solution

The fourth proportional to 315,945,796.76, 473,939,489.22 and 82,782,217.88 is: 124,178,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,945,796.76 : 473,939,489.22 = 82,782,217.88 : x
  2. Step 2: Convert to fraction form
    315,945,796.76/473,939,489.22 = 82,782,217.88/x
  3. Step 3: Cross multiply
    315,945,796.76x = 473,939,489.22 × 82,782,217.88
  4. Step 4: Simplify right side
    315,945,796.76x = 39,233,762,058,545,952
  5. Step 5: Solve for x
    x = 39,233,762,058,545,952/315,945,796.76
  6. Step 6: Final answer
    x = 124,178,775.16

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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.