Home / 15,114,137.09-20,856,722.20-8,586,860.63

Finding the Fourth Proportional to 15,114,137.09, 20,856,722.20 and 8,586,860.63

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Solution

The fourth proportional to 15,114,137.09, 20,856,722.20 and 8,586,860.63 is: 11,849,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114,137.09 : 20,856,722.20 = 8,586,860.63 : x
  2. Step 2: Convert to fraction form
    15,114,137.09/20,856,722.20 = 8,586,860.63/x
  3. Step 3: Cross multiply
    15,114,137.09x = 20,856,722.20 × 8,586,860.63
  4. Step 4: Simplify right side
    15,114,137.09x = 179,093,766,604,276.25
  5. Step 5: Solve for x
    x = 179,093,766,604,276.25/15,114,137.09
  6. Step 6: Final answer
    x = 11,849,420.55

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1.5x scale

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.