Home / 13,731,763.20-20,597,644.80-7,685,145.60

Finding the Fourth Proportional to 13,731,763.20, 20,597,644.80 and 7,685,145.60

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Solution

The fourth proportional to 13,731,763.20, 20,597,644.80 and 7,685,145.60 is: 11,527,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,763.20 : 20,597,644.80 = 7,685,145.60 : x
  2. Step 2: Convert to fraction form
    13,731,763.20/20,597,644.80 = 7,685,145.60/x
  3. Step 3: Cross multiply
    13,731,763.20x = 20,597,644.80 × 7,685,145.60
  4. Step 4: Simplify right side
    13,731,763.20x = 158,295,899,305,082.88
  5. Step 5: Solve for x
    x = 158,295,899,305,082.88/13,731,763.20
  6. Step 6: Final answer
    x = 11,527,718.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.