Home / 12,059,389.16-18,085,196.31-3,970,438.90

Finding the Fourth Proportional to 12,059,389.16, 18,085,196.31 and 3,970,438.90

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Solution

The fourth proportional to 12,059,389.16, 18,085,196.31 and 3,970,438.90 is: 5,954,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059,389.16 : 18,085,196.31 = 3,970,438.90 : x
  2. Step 2: Convert to fraction form
    12,059,389.16/18,085,196.31 = 3,970,438.90/x
  3. Step 3: Cross multiply
    12,059,389.16x = 18,085,196.31 × 3,970,438.90
  4. Step 4: Simplify right side
    12,059,389.16x = 71,806,166,943,360.45
  5. Step 5: Solve for x
    x = 71,806,166,943,360.45/12,059,389.16
  6. Step 6: Final answer
    x = 5,954,378.45

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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.