Home / 20,639,903.63-28,483,085.23-11,347,631.77

Finding the Fourth Proportional to 20,639,903.63, 28,483,085.23 and 11,347,631.77

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Solution

The fourth proportional to 20,639,903.63, 28,483,085.23 and 11,347,631.77 is: 15,659,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,903.63 : 28,483,085.23 = 11,347,631.77 : x
  2. Step 2: Convert to fraction form
    20,639,903.63/28,483,085.23 = 11,347,631.77/x
  3. Step 3: Cross multiply
    20,639,903.63x = 28,483,085.23 × 11,347,631.77
  4. Step 4: Simplify right side
    20,639,903.63x = 323,215,562,817,394.75
  5. Step 5: Solve for x
    x = 323,215,562,817,394.75/20,639,903.63
  6. Step 6: Final answer
    x = 15,659,741.86

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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.