Home / 820,007,331.60-1,230,118,889.40-302,801,077.20

Finding the Fourth Proportional to 820,007,331.60, 1,230,118,889.40 and 302,801,077.20

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Solution

The fourth proportional to 820,007,331.60, 1,230,118,889.40 and 302,801,077.20 is: 454,241,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,007,331.60 : 1,230,118,889.40 = 302,801,077.20 : x
  2. Step 2: Convert to fraction form
    820,007,331.60/1,230,118,889.40 = 302,801,077.20/x
  3. Step 3: Cross multiply
    820,007,331.60x = 1,230,118,889.40 × 302,801,077.20
  4. Step 4: Simplify right side
    820,007,331.60x = 372,481,324,794,387,648
  5. Step 5: Solve for x
    x = 372,481,324,794,387,648/820,007,331.60
  6. Step 6: Final answer
    x = 454,241,456.68

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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.