Home / 18,381,812.40-27,572,718.60-4,918,640.40

Finding the Fourth Proportional to 18,381,812.40, 27,572,718.60 and 4,918,640.40

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Solution

The fourth proportional to 18,381,812.40, 27,572,718.60 and 4,918,640.40 is: 7,377,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,812.40 : 27,572,718.60 = 4,918,640.40 : x
  2. Step 2: Convert to fraction form
    18,381,812.40/27,572,718.60 = 4,918,640.40/x
  3. Step 3: Cross multiply
    18,381,812.40x = 27,572,718.60 × 4,918,640.40
  4. Step 4: Simplify right side
    18,381,812.40x = 135,620,287,643,791.45
  5. Step 5: Solve for x
    x = 135,620,287,643,791.45/18,381,812.40
  6. Step 6: Final answer
    x = 7,377,960.60

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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.