Home / 20,601,368.92-28,431,217.74-11,434,011.76

Finding the Fourth Proportional to 20,601,368.92, 28,431,217.74 and 11,434,011.76

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Solution

The fourth proportional to 20,601,368.92, 28,431,217.74 and 11,434,011.76 is: 15,779,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601,368.92 : 28,431,217.74 = 11,434,011.76 : x
  2. Step 2: Convert to fraction form
    20,601,368.92/28,431,217.74 = 11,434,011.76/x
  3. Step 3: Cross multiply
    20,601,368.92x = 28,431,217.74 × 11,434,011.76
  4. Step 4: Simplify right side
    20,601,368.92x = 325,082,877,990,280.62
  5. Step 5: Solve for x
    x = 325,082,877,990,280.62/20,601,368.92
  6. Step 6: Final answer
    x = 15,779,673.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.