Home / 490,717,062.56-677,068,763.28-299,929,792.16

Finding the Fourth Proportional to 490,717,062.56, 677,068,763.28 and 299,929,792.16

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Solution

The fourth proportional to 490,717,062.56, 677,068,763.28 and 299,929,792.16 is: 413,829,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,717,062.56 : 677,068,763.28 = 299,929,792.16 : x
  2. Step 2: Convert to fraction form
    490,717,062.56/677,068,763.28 = 299,929,792.16/x
  3. Step 3: Cross multiply
    490,717,062.56x = 677,068,763.28 × 299,929,792.16
  4. Step 4: Simplify right side
    490,717,062.56x = 203,073,093,448,598,656
  5. Step 5: Solve for x
    x = 203,073,093,448,598,656/490,717,062.56
  6. Step 6: Final answer
    x = 413,829,289.71

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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.