Home / 20,430,474.96-28,194,247.74-11,263,445.76

Finding the Fourth Proportional to 20,430,474.96, 28,194,247.74 and 11,263,445.76

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Solution

The fourth proportional to 20,430,474.96, 28,194,247.74 and 11,263,445.76 is: 15,543,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,474.96 : 28,194,247.74 = 11,263,445.76 : x
  2. Step 2: Convert to fraction form
    20,430,474.96/28,194,247.74 = 11,263,445.76/x
  3. Step 3: Cross multiply
    20,430,474.96x = 28,194,247.74 × 11,263,445.76
  4. Step 4: Simplify right side
    20,430,474.96x = 317,564,380,163,492.56
  5. Step 5: Solve for x
    x = 317,564,380,163,492.56/20,430,474.96
  6. Step 6: Final answer
    x = 15,543,661.16

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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.