Home / 609,016,309.12-840,420,002.03-330,551,853.94

Finding the Fourth Proportional to 609,016,309.12, 840,420,002.03 and 330,551,853.94

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Solution

The fourth proportional to 609,016,309.12, 840,420,002.03 and 330,551,853.94 is: 456,149,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,016,309.12 : 840,420,002.03 = 330,551,853.94 : x
  2. Step 2: Convert to fraction form
    609,016,309.12/840,420,002.03 = 330,551,853.94/x
  3. Step 3: Cross multiply
    609,016,309.12x = 840,420,002.03 × 330,551,853.94
  4. Step 4: Simplify right side
    609,016,309.12x = 277,802,389,759,275,040
  5. Step 5: Solve for x
    x = 277,802,389,759,275,040/609,016,309.12
  6. Step 6: Final answer
    x = 456,149,343.78

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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.