Home / 20,306,538.72-28,022,762-11,604,611.68

Finding the Fourth Proportional to 20,306,538.72, 28,022,762 and 11,604,611.68

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Solution

The fourth proportional to 20,306,538.72, 28,022,762 and 11,604,611.68 is: 16,014,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306,538.72 : 28,022,762 = 11,604,611.68 : x
  2. Step 2: Convert to fraction form
    20,306,538.72/28,022,762 = 11,604,611.68/x
  3. Step 3: Cross multiply
    20,306,538.72x = 28,022,762 × 11,604,611.68
  4. Step 4: Simplify right side
    20,306,538.72x = 325,193,271,211,060.12
  5. Step 5: Solve for x
    x = 325,193,271,211,060.12/20,306,538.72
  6. Step 6: Final answer
    x = 16,014,214.72

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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.