Home / 30,348,738.20-45,523,107.30-21,101,664.80

Finding the Fourth Proportional to 30,348,738.20, 45,523,107.30 and 21,101,664.80

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Solution

The fourth proportional to 30,348,738.20, 45,523,107.30 and 21,101,664.80 is: 31,652,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,738.20 : 45,523,107.30 = 21,101,664.80 : x
  2. Step 2: Convert to fraction form
    30,348,738.20/45,523,107.30 = 21,101,664.80/x
  3. Step 3: Cross multiply
    30,348,738.20x = 45,523,107.30 × 21,101,664.80
  4. Step 4: Simplify right side
    30,348,738.20x = 960,613,350,899,033
  5. Step 5: Solve for x
    x = 960,613,350,899,033/30,348,738.20
  6. Step 6: Final answer
    x = 31,652,497.20

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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.