Home / 12,048,615.40-18,086,919.90-7,261,709.80

Finding the Fourth Proportional to 12,048,615.40, 18,086,919.90 and 7,261,709.80

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Solution

The fourth proportional to 12,048,615.40, 18,086,919.90 and 7,261,709.80 is: 10,901,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048,615.40 : 18,086,919.90 = 7,261,709.80 : x
  2. Step 2: Convert to fraction form
    12,048,615.40/18,086,919.90 = 7,261,709.80/x
  3. Step 3: Cross multiply
    12,048,615.40x = 18,086,919.90 × 7,261,709.80
  4. Step 4: Simplify right side
    12,048,615.40x = 131,341,963,489,645
  5. Step 5: Solve for x
    x = 131,341,963,489,645/12,048,615.40
  6. Step 6: Final answer
    x = 10,901,000.58

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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.