Home / 391,125,719.20-585,792,783.60-199,425,546.40

Finding the Fourth Proportional to 391,125,719.20, 585,792,783.60 and 199,425,546.40

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Solution

The fourth proportional to 391,125,719.20, 585,792,783.60 and 199,425,546.40 is: 298,681,575.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,125,719.20 : 585,792,783.60 = 199,425,546.40 : x
  2. Step 2: Convert to fraction form
    391,125,719.20/585,792,783.60 = 199,425,546.40/x
  3. Step 3: Cross multiply
    391,125,719.20x = 585,792,783.60 × 199,425,546.40
  4. Step 4: Simplify right side
    391,125,719.20x = 116,822,045,946,606,960
  5. Step 5: Solve for x
    x = 116,822,045,946,606,960/391,125,719.20
  6. Step 6: Final answer
    x = 298,681,575.29

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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.