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Finding the Fourth Proportional to 74,880,816, 112,321,224 and 18,147,120

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Solution

The fourth proportional to 74,880,816, 112,321,224 and 18,147,120 is: 27,220,680

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880,816 : 112,321,224 = 18,147,120 : x
  2. Step 2: Convert to fraction form
    74,880,816/112,321,224 = 18,147,120/x
  3. Step 3: Cross multiply
    74,880,816x = 112,321,224 × 18,147,120
  4. Step 4: Simplify right side
    74,880,816x = 2,038,306,730,474,880
  5. Step 5: Solve for x
    x = 2,038,306,730,474,880/74,880,816
  6. Step 6: Final answer
    x = 27,220,680

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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.