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Finding the Fourth Proportional to 74,880,814, 112,321,221 and 18,147,118

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Solution

The fourth proportional to 74,880,814, 112,321,221 and 18,147,118 is: 27,220,677

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880,814 : 112,321,221 = 18,147,118 : x
  2. Step 2: Convert to fraction form
    74,880,814/112,321,221 = 18,147,118/x
  3. Step 3: Cross multiply
    74,880,814x = 112,321,221 × 18,147,118
  4. Step 4: Simplify right side
    74,880,814x = 2,038,306,451,391,078
  5. Step 5: Solve for x
    x = 2,038,306,451,391,078/74,880,814
  6. Step 6: Final answer
    x = 27,220,677

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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.