Home / 18,103,640.40-27,155,460.60-5,325,436.80

Finding the Fourth Proportional to 18,103,640.40, 27,155,460.60 and 5,325,436.80

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Solution

The fourth proportional to 18,103,640.40, 27,155,460.60 and 5,325,436.80 is: 7,988,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103,640.40 : 27,155,460.60 = 5,325,436.80 : x
  2. Step 2: Convert to fraction form
    18,103,640.40/27,155,460.60 = 5,325,436.80/x
  3. Step 3: Cross multiply
    18,103,640.40x = 27,155,460.60 × 5,325,436.80
  4. Step 4: Simplify right side
    18,103,640.40x = 144,614,689,200,190.09
  5. Step 5: Solve for x
    x = 144,614,689,200,190.09/18,103,640.40
  6. Step 6: Final answer
    x = 7,988,155.20

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1.5x scale

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.