Home / 285,388,782.48-393,829,820.64-167,921,720.64

Finding the Fourth Proportional to 285,388,782.48, 393,829,820.64 and 167,921,720.64

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Solution

The fourth proportional to 285,388,782.48, 393,829,820.64 and 167,921,720.64 is: 231,728,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,388,782.48 : 393,829,820.64 = 167,921,720.64 : x
  2. Step 2: Convert to fraction form
    285,388,782.48/393,829,820.64 = 167,921,720.64/x
  3. Step 3: Cross multiply
    285,388,782.48x = 393,829,820.64 × 167,921,720.64
  4. Step 4: Simplify right side
    285,388,782.48x = 66,132,581,121,211,376
  5. Step 5: Solve for x
    x = 66,132,581,121,211,376/285,388,782.48
  6. Step 6: Final answer
    x = 231,728,032.71

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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.