Home / 12,625,763.67-18,938,531.28-3,989,865.54

Finding the Fourth Proportional to 12,625,763.67, 18,938,531.28 and 3,989,865.54

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Solution

The fourth proportional to 12,625,763.67, 18,938,531.28 and 3,989,865.54 is: 5,984,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625,763.67 : 18,938,531.28 = 3,989,865.54 : x
  2. Step 2: Convert to fraction form
    12,625,763.67/18,938,531.28 = 3,989,865.54/x
  3. Step 3: Cross multiply
    12,625,763.67x = 18,938,531.28 × 3,989,865.54
  4. Step 4: Simplify right side
    12,625,763.67x = 75,562,193,332,284.09
  5. Step 5: Solve for x
    x = 75,562,193,332,284.09/12,625,763.67
  6. Step 6: Final answer
    x = 5,984,762.21

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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.