Home / 12,136,138.40-18,204,207.60-7,341,359.60

Finding the Fourth Proportional to 12,136,138.40, 18,204,207.60 and 7,341,359.60

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Solution

The fourth proportional to 12,136,138.40, 18,204,207.60 and 7,341,359.60 is: 11,012,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136,138.40 : 18,204,207.60 = 7,341,359.60 : x
  2. Step 2: Convert to fraction form
    12,136,138.40/18,204,207.60 = 7,341,359.60/x
  3. Step 3: Cross multiply
    12,136,138.40x = 18,204,207.60 × 7,341,359.60
  4. Step 4: Simplify right side
    12,136,138.40x = 133,643,634,224,652.97
  5. Step 5: Solve for x
    x = 133,643,634,224,652.97/12,136,138.40
  6. Step 6: Final answer
    x = 11,012,039.40

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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.