Home / 30,619,606.80-45,929,410.20-21,053,668.80

Finding the Fourth Proportional to 30,619,606.80, 45,929,410.20 and 21,053,668.80

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Solution

The fourth proportional to 30,619,606.80, 45,929,410.20 and 21,053,668.80 is: 31,580,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619,606.80 : 45,929,410.20 = 21,053,668.80 : x
  2. Step 2: Convert to fraction form
    30,619,606.80/45,929,410.20 = 21,053,668.80/x
  3. Step 3: Cross multiply
    30,619,606.80x = 45,929,410.20 × 21,053,668.80
  4. Step 4: Simplify right side
    30,619,606.80x = 966,982,590,530,141.88
  5. Step 5: Solve for x
    x = 966,982,590,530,141.88/30,619,606.80
  6. Step 6: Final answer
    x = 31,580,503.20

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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.