Home / 15,242,912.21-21,006,222.51-14,962,784.85

Finding the Fourth Proportional to 15,242,912.21, 21,006,222.51 and 14,962,784.85

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Solution

The fourth proportional to 15,242,912.21, 21,006,222.51 and 14,962,784.85 is: 20,620,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242,912.21 : 21,006,222.51 = 14,962,784.85 : x
  2. Step 2: Convert to fraction form
    15,242,912.21/21,006,222.51 = 14,962,784.85/x
  3. Step 3: Cross multiply
    15,242,912.21x = 21,006,222.51 × 14,962,784.85
  4. Step 4: Simplify right side
    15,242,912.21x = 314,311,587,984,467.44
  5. Step 5: Solve for x
    x = 314,311,587,984,467.44/15,242,912.21
  6. Step 6: Final answer
    x = 20,620,179.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.