Home / 6,640,207.40-9,960,311.10-6,584,220.20

Finding the Fourth Proportional to 6,640,207.40, 9,960,311.10 and 6,584,220.20

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Solution

The fourth proportional to 6,640,207.40, 9,960,311.10 and 6,584,220.20 is: 9,876,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,207.40 : 9,960,311.10 = 6,584,220.20 : x
  2. Step 2: Convert to fraction form
    6,640,207.40/9,960,311.10 = 6,584,220.20/x
  3. Step 3: Cross multiply
    6,640,207.40x = 9,960,311.10 × 6,584,220.20
  4. Step 4: Simplify right side
    6,640,207.40x = 65,580,881,542,904.22
  5. Step 5: Solve for x
    x = 65,580,881,542,904.22/6,640,207.40
  6. Step 6: Final answer
    x = 9,876,330.30

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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.