Home / 13,776,091.20-20,664,136.80-11,862,903.60

Finding the Fourth Proportional to 13,776,091.20, 20,664,136.80 and 11,862,903.60

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Solution

The fourth proportional to 13,776,091.20, 20,664,136.80 and 11,862,903.60 is: 17,794,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776,091.20 : 20,664,136.80 = 11,862,903.60 : x
  2. Step 2: Convert to fraction form
    13,776,091.20/20,664,136.80 = 11,862,903.60/x
  3. Step 3: Cross multiply
    13,776,091.20x = 20,664,136.80 × 11,862,903.60
  4. Step 4: Simplify right side
    13,776,091.20x = 245,136,662,835,612.47
  5. Step 5: Solve for x
    x = 245,136,662,835,612.47/13,776,091.20
  6. Step 6: Final answer
    x = 17,794,355.40

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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.