Home / 672,586,825.28-928,233,707.28-421,730,926.88

Finding the Fourth Proportional to 672,586,825.28, 928,233,707.28 and 421,730,926.88

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Solution

The fourth proportional to 672,586,825.28, 928,233,707.28 and 421,730,926.88 is: 582,028,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,586,825.28 : 928,233,707.28 = 421,730,926.88 : x
  2. Step 2: Convert to fraction form
    672,586,825.28/928,233,707.28 = 421,730,926.88/x
  3. Step 3: Cross multiply
    672,586,825.28x = 928,233,707.28 × 421,730,926.88
  4. Step 4: Simplify right side
    672,586,825.28x = 391,464,861,732,452,992
  5. Step 5: Solve for x
    x = 391,464,861,732,452,992/672,586,825.28
  6. Step 6: Final answer
    x = 582,028,738.92

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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.