Home / 20,610,378.56-28,440,309.27-11,908,364.33

Finding the Fourth Proportional to 20,610,378.56, 28,440,309.27 and 11,908,364.33

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Solution

The fourth proportional to 20,610,378.56, 28,440,309.27 and 11,908,364.33 is: 16,432,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610,378.56 : 28,440,309.27 = 11,908,364.33 : x
  2. Step 2: Convert to fraction form
    20,610,378.56/28,440,309.27 = 11,908,364.33/x
  3. Step 3: Cross multiply
    20,610,378.56x = 28,440,309.27 × 11,908,364.33
  4. Step 4: Simplify right side
    20,610,378.56x = 338,677,564,512,411
  5. Step 5: Solve for x
    x = 338,677,564,512,411/20,610,378.56
  6. Step 6: Final answer
    x = 16,432,379.62

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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.