Home / 391,235,703.20-585,460,095.60-340,673,040.80

Finding the Fourth Proportional to 391,235,703.20, 585,460,095.60 and 340,673,040.80

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Solution

The fourth proportional to 391,235,703.20, 585,460,095.60 and 340,673,040.80 is: 509,796,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,235,703.20 : 585,460,095.60 = 340,673,040.80 : x
  2. Step 2: Convert to fraction form
    391,235,703.20/585,460,095.60 = 340,673,040.80/x
  3. Step 3: Cross multiply
    391,235,703.20x = 585,460,095.60 × 340,673,040.80
  4. Step 4: Simplify right side
    391,235,703.20x = 199,450,471,035,110,720
  5. Step 5: Solve for x
    x = 199,450,471,035,110,720/391,235,703.20
  6. Step 6: Final answer
    x = 509,796,190.39

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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.