Home / 12,012,220.79-18,021,402.54-3,492,557.25

Finding the Fourth Proportional to 12,012,220.79, 18,021,402.54 and 3,492,557.25

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Solution

The fourth proportional to 12,012,220.79, 18,021,402.54 and 3,492,557.25 is: 5,239,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012,220.79 : 18,021,402.54 = 3,492,557.25 : x
  2. Step 2: Convert to fraction form
    12,012,220.79/18,021,402.54 = 3,492,557.25/x
  3. Step 3: Cross multiply
    12,012,220.79x = 18,021,402.54 × 3,492,557.25
  4. Step 4: Simplify right side
    12,012,220.79x = 62,940,780,096,245.41
  5. Step 5: Solve for x
    x = 62,940,780,096,245.41/12,012,220.79
  6. Step 6: Final answer
    x = 5,239,728.87

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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.