Home / 8,300,679.40-12,451,019.10-6,621,063.40

Finding the Fourth Proportional to 8,300,679.40, 12,451,019.10 and 6,621,063.40

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Solution

The fourth proportional to 8,300,679.40, 12,451,019.10 and 6,621,063.40 is: 9,931,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,679.40 : 12,451,019.10 = 6,621,063.40 : x
  2. Step 2: Convert to fraction form
    8,300,679.40/12,451,019.10 = 6,621,063.40/x
  3. Step 3: Cross multiply
    8,300,679.40x = 12,451,019.10 × 6,621,063.40
  4. Step 4: Simplify right side
    8,300,679.40x = 82,438,986,855,710.94
  5. Step 5: Solve for x
    x = 82,438,986,855,710.94/8,300,679.40
  6. Step 6: Final answer
    x = 9,931,595.10

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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.