Home / 30,053,910.30-45,080,865.45-20,487,972.30

Finding the Fourth Proportional to 30,053,910.30, 45,080,865.45 and 20,487,972.30

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Solution

The fourth proportional to 30,053,910.30, 45,080,865.45 and 20,487,972.30 is: 30,731,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053,910.30 : 45,080,865.45 = 20,487,972.30 : x
  2. Step 2: Convert to fraction form
    30,053,910.30/45,080,865.45 = 20,487,972.30/x
  3. Step 3: Cross multiply
    30,053,910.30x = 45,080,865.45 × 20,487,972.30
  4. Step 4: Simplify right side
    30,053,910.30x = 923,615,522,599,627.12
  5. Step 5: Solve for x
    x = 923,615,522,599,627.12/30,053,910.30
  6. Step 6: Final answer
    x = 30,731,958.45

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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.