Home / 7,320,226.80-10,980,340.20-5,430,658.80

Finding the Fourth Proportional to 7,320,226.80, 10,980,340.20 and 5,430,658.80

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Solution

The fourth proportional to 7,320,226.80, 10,980,340.20 and 5,430,658.80 is: 8,145,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320,226.80 : 10,980,340.20 = 5,430,658.80 : x
  2. Step 2: Convert to fraction form
    7,320,226.80/10,980,340.20 = 5,430,658.80/x
  3. Step 3: Cross multiply
    7,320,226.80x = 10,980,340.20 × 5,430,658.80
  4. Step 4: Simplify right side
    7,320,226.80x = 59,630,481,134,123.76
  5. Step 5: Solve for x
    x = 59,630,481,134,123.76/7,320,226.80
  6. Step 6: Final answer
    x = 8,145,988.20

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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.