Home / 20,219,779.28-30,341,653.68-7,449,244.76

Finding the Fourth Proportional to 20,219,779.28, 30,341,653.68 and 7,449,244.76

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Solution

The fourth proportional to 20,219,779.28, 30,341,653.68 and 7,449,244.76 is: 11,178,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,779.28 : 30,341,653.68 = 7,449,244.76 : x
  2. Step 2: Convert to fraction form
    20,219,779.28/30,341,653.68 = 7,449,244.76/x
  3. Step 3: Cross multiply
    20,219,779.28x = 30,341,653.68 × 7,449,244.76
  4. Step 4: Simplify right side
    20,219,779.28x = 226,022,404,685,474.72
  5. Step 5: Solve for x
    x = 226,022,404,685,474.72/20,219,779.28
  6. Step 6: Final answer
    x = 11,178,282.49

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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.