Home / 30,222,078.20-45,333,117.30-21,782,007.80

Finding the Fourth Proportional to 30,222,078.20, 45,333,117.30 and 21,782,007.80

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Solution

The fourth proportional to 30,222,078.20, 45,333,117.30 and 21,782,007.80 is: 32,673,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222,078.20 : 45,333,117.30 = 21,782,007.80 : x
  2. Step 2: Convert to fraction form
    30,222,078.20/45,333,117.30 = 21,782,007.80/x
  3. Step 3: Cross multiply
    30,222,078.20x = 45,333,117.30 × 21,782,007.80
  4. Step 4: Simplify right side
    30,222,078.20x = 987,446,314,626,914.88
  5. Step 5: Solve for x
    x = 987,446,314,626,914.88/30,222,078.20
  6. Step 6: Final answer
    x = 32,673,011.70

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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.