Home / 13,681,709.80-20,509,028.70-6,480,586.60

Finding the Fourth Proportional to 13,681,709.80, 20,509,028.70 and 6,480,586.60

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Solution

The fourth proportional to 13,681,709.80, 20,509,028.70 and 6,480,586.60 is: 9,714,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681,709.80 : 20,509,028.70 = 6,480,586.60 : x
  2. Step 2: Convert to fraction form
    13,681,709.80/20,509,028.70 = 6,480,586.60/x
  3. Step 3: Cross multiply
    13,681,709.80x = 20,509,028.70 × 6,480,586.60
  4. Step 4: Simplify right side
    13,681,709.80x = 132,910,536,572,235.41
  5. Step 5: Solve for x
    x = 132,910,536,572,235.41/13,681,709.80
  6. Step 6: Final answer
    x = 9,714,468.33

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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.