Home / 7,259,819.20-10,889,728.80-6,475,998.40

Finding the Fourth Proportional to 7,259,819.20, 10,889,728.80 and 6,475,998.40

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Solution

The fourth proportional to 7,259,819.20, 10,889,728.80 and 6,475,998.40 is: 9,713,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259,819.20 : 10,889,728.80 = 6,475,998.40 : x
  2. Step 2: Convert to fraction form
    7,259,819.20/10,889,728.80 = 6,475,998.40/x
  3. Step 3: Cross multiply
    7,259,819.20x = 10,889,728.80 × 6,475,998.40
  4. Step 4: Simplify right side
    7,259,819.20x = 70,521,866,285,233.92
  5. Step 5: Solve for x
    x = 70,521,866,285,233.92/7,259,819.20
  6. Step 6: Final answer
    x = 9,713,997.60

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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.