Home / 7,452,031.70-11,178,047.55-6,640,217.30

Finding the Fourth Proportional to 7,452,031.70, 11,178,047.55 and 6,640,217.30

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Solution

The fourth proportional to 7,452,031.70, 11,178,047.55 and 6,640,217.30 is: 9,960,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452,031.70 : 11,178,047.55 = 6,640,217.30 : x
  2. Step 2: Convert to fraction form
    7,452,031.70/11,178,047.55 = 6,640,217.30/x
  3. Step 3: Cross multiply
    7,452,031.70x = 11,178,047.55 × 6,640,217.30
  4. Step 4: Simplify right side
    7,452,031.70x = 74,224,664,721,732.62
  5. Step 5: Solve for x
    x = 74,224,664,721,732.62/7,452,031.70
  6. Step 6: Final answer
    x = 9,960,325.95

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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.