Home / 888,121,396.89-1,225,617,224.45-491,651,008.88

Finding the Fourth Proportional to 888,121,396.89, 1,225,617,224.45 and 491,651,008.88

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Solution

The fourth proportional to 888,121,396.89, 1,225,617,224.45 and 491,651,008.88 is: 678,483,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,121,396.89 : 1,225,617,224.45 = 491,651,008.88 : x
  2. Step 2: Convert to fraction form
    888,121,396.89/1,225,617,224.45 = 491,651,008.88/x
  3. Step 3: Cross multiply
    888,121,396.89x = 1,225,617,224.45 × 491,651,008.88
  4. Step 4: Simplify right side
    888,121,396.89x = 602,575,944,892,961,536
  5. Step 5: Solve for x
    x = 602,575,944,892,961,536/888,121,396.89
  6. Step 6: Final answer
    x = 678,483,760.22

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1.5x scale

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.