Home / 6,912,570.20-10,368,855.30-6,520,659.80

Finding the Fourth Proportional to 6,912,570.20, 10,368,855.30 and 6,520,659.80

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Solution

The fourth proportional to 6,912,570.20, 10,368,855.30 and 6,520,659.80 is: 9,780,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,570.20 : 10,368,855.30 = 6,520,659.80 : x
  2. Step 2: Convert to fraction form
    6,912,570.20/10,368,855.30 = 6,520,659.80/x
  3. Step 3: Cross multiply
    6,912,570.20x = 10,368,855.30 × 6,520,659.80
  4. Step 4: Simplify right side
    6,912,570.20x = 67,611,777,926,726.95
  5. Step 5: Solve for x
    x = 67,611,777,926,726.95/6,912,570.20
  6. Step 6: Final answer
    x = 9,780,989.70

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1.5x scale

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.