Home / 7,380,742.20-11,071,113.30-6,385,414.20

Finding the Fourth Proportional to 7,380,742.20, 11,071,113.30 and 6,385,414.20

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Solution

The fourth proportional to 7,380,742.20, 11,071,113.30 and 6,385,414.20 is: 9,578,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380,742.20 : 11,071,113.30 = 6,385,414.20 : x
  2. Step 2: Convert to fraction form
    7,380,742.20/11,071,113.30 = 6,385,414.20/x
  3. Step 3: Cross multiply
    7,380,742.20x = 11,071,113.30 × 6,385,414.20
  4. Step 4: Simplify right side
    7,380,742.20x = 70,693,644,075,628.86
  5. Step 5: Solve for x
    x = 70,693,644,075,628.86/7,380,742.20
  6. Step 6: Final answer
    x = 9,578,121.30

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Double scale
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Similar ratio
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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.