Home / 762,532,447.20-1,143,276,498.48-388,315,956.48

Finding the Fourth Proportional to 762,532,447.20, 1,143,276,498.48 and 388,315,956.48

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Solution

The fourth proportional to 762,532,447.20, 1,143,276,498.48 and 388,315,956.48 is: 582,208,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,532,447.20 : 1,143,276,498.48 = 388,315,956.48 : x
  2. Step 2: Convert to fraction form
    762,532,447.20/1,143,276,498.48 = 388,315,956.48/x
  3. Step 3: Cross multiply
    762,532,447.20x = 1,143,276,498.48 × 388,315,956.48
  4. Step 4: Simplify right side
    762,532,447.20x = 443,952,507,028,366,464
  5. Step 5: Solve for x
    x = 443,952,507,028,366,464/762,532,447.20
  6. Step 6: Final answer
    x = 582,208,020.99

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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.