Home / 12,389,720.40-18,584,580.60-8,085,048.30

Finding the Fourth Proportional to 12,389,720.40, 18,584,580.60 and 8,085,048.30

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Solution

The fourth proportional to 12,389,720.40, 18,584,580.60 and 8,085,048.30 is: 12,127,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389,720.40 : 18,584,580.60 = 8,085,048.30 : x
  2. Step 2: Convert to fraction form
    12,389,720.40/18,584,580.60 = 8,085,048.30/x
  3. Step 3: Cross multiply
    12,389,720.40x = 18,584,580.60 × 8,085,048.30
  4. Step 4: Simplify right side
    12,389,720.40x = 150,257,231,786,243
  5. Step 5: Solve for x
    x = 150,257,231,786,243/12,389,720.40
  6. Step 6: Final answer
    x = 12,127,572.45

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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.