Home / 20,601,366.92-28,431,214.98-11,434,009.76

Finding the Fourth Proportional to 20,601,366.92, 28,431,214.98 and 11,434,009.76

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Solution

The fourth proportional to 20,601,366.92, 28,431,214.98 and 11,434,009.76 is: 15,779,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601,366.92 : 28,431,214.98 = 11,434,009.76 : x
  2. Step 2: Convert to fraction form
    20,601,366.92/28,431,214.98 = 11,434,009.76/x
  3. Step 3: Cross multiply
    20,601,366.92x = 28,431,214.98 × 11,434,009.76
  4. Step 4: Simplify right side
    20,601,366.92x = 325,082,789,569,978.19
  5. Step 5: Solve for x
    x = 325,082,789,569,978.19/20,601,366.92
  6. Step 6: Final answer
    x = 15,779,670.87

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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.