Home / 20,405,921.40-30,642,059.70-14,765,729.40

Finding the Fourth Proportional to 20,405,921.40, 30,642,059.70 and 14,765,729.40

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Solution

The fourth proportional to 20,405,921.40, 30,642,059.70 and 14,765,729.40 is: 22,172,601.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,921.40 : 30,642,059.70 = 14,765,729.40 : x
  2. Step 2: Convert to fraction form
    20,405,921.40/30,642,059.70 = 14,765,729.40/x
  3. Step 3: Cross multiply
    20,405,921.40x = 30,642,059.70 × 14,765,729.40
  4. Step 4: Simplify right side
    20,405,921.40x = 452,452,361,788,845.19
  5. Step 5: Solve for x
    x = 452,452,361,788,845.19/20,405,921.40
  6. Step 6: Final answer
    x = 22,172,601.42

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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.