Home / 12,012,220.91-18,021,402.75-3,492,557.39

Finding the Fourth Proportional to 12,012,220.91, 18,021,402.75 and 3,492,557.39

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Solution

The fourth proportional to 12,012,220.91, 18,021,402.75 and 3,492,557.39 is: 5,239,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012,220.91 : 18,021,402.75 = 3,492,557.39 : x
  2. Step 2: Convert to fraction form
    12,012,220.91/18,021,402.75 = 3,492,557.39/x
  3. Step 3: Cross multiply
    12,012,220.91x = 18,021,402.75 × 3,492,557.39
  4. Step 4: Simplify right side
    12,012,220.91x = 62,940,783,245,109.02
  5. Step 5: Solve for x
    x = 62,940,783,245,109.02/12,012,220.91
  6. Step 6: Final answer
    x = 5,239,729.08

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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.