Home / 6,640,010.80-9,960,016.20-6,590,244.40

Finding the Fourth Proportional to 6,640,010.80, 9,960,016.20 and 6,590,244.40

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Solution

The fourth proportional to 6,640,010.80, 9,960,016.20 and 6,590,244.40 is: 9,885,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,010.80 : 9,960,016.20 = 6,590,244.40 : x
  2. Step 2: Convert to fraction form
    6,640,010.80/9,960,016.20 = 6,590,244.40/x
  3. Step 3: Cross multiply
    6,640,010.80x = 9,960,016.20 × 6,590,244.40
  4. Step 4: Simplify right side
    6,640,010.80x = 65,638,940,985,959.28
  5. Step 5: Solve for x
    x = 65,638,940,985,959.28/6,640,010.80
  6. Step 6: Final answer
    x = 9,885,366.60

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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.