Home / 20,639,715.94-28,482,826.22-11,347,444.12

Finding the Fourth Proportional to 20,639,715.94, 28,482,826.22 and 11,347,444.12

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Solution

The fourth proportional to 20,639,715.94, 28,482,826.22 and 11,347,444.12 is: 15,659,482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,715.94 : 28,482,826.22 = 11,347,444.12 : x
  2. Step 2: Convert to fraction form
    20,639,715.94/28,482,826.22 = 11,347,444.12/x
  3. Step 3: Cross multiply
    20,639,715.94x = 28,482,826.22 × 11,347,444.12
  4. Step 4: Simplify right side
    20,639,715.94x = 323,207,278,711,969.50
  5. Step 5: Solve for x
    x = 323,207,278,711,969.50/20,639,715.94
  6. Step 6: Final answer
    x = 15,659,482.89

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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.