Home / 763,442,021.40-1,145,498,955.30-354,287,563.80

Finding the Fourth Proportional to 763,442,021.40, 1,145,498,955.30 and 354,287,563.80

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Solution

The fourth proportional to 763,442,021.40, 1,145,498,955.30 and 354,287,563.80 is: 531,587,236.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,442,021.40 : 1,145,498,955.30 = 354,287,563.80 : x
  2. Step 2: Convert to fraction form
    763,442,021.40/1,145,498,955.30 = 354,287,563.80/x
  3. Step 3: Cross multiply
    763,442,021.40x = 1,145,498,955.30 × 354,287,563.80
  4. Step 4: Simplify right side
    763,442,021.40x = 405,836,034,208,682,112
  5. Step 5: Solve for x
    x = 405,836,034,208,682,112/763,442,021.40
  6. Step 6: Final answer
    x = 531,587,236.27

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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.