Home / 6,642,784.20-9,964,176.30-2,155,060.20

Finding the Fourth Proportional to 6,642,784.20, 9,964,176.30 and 2,155,060.20

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Solution

The fourth proportional to 6,642,784.20, 9,964,176.30 and 2,155,060.20 is: 3,232,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,784.20 : 9,964,176.30 = 2,155,060.20 : x
  2. Step 2: Convert to fraction form
    6,642,784.20/9,964,176.30 = 2,155,060.20/x
  3. Step 3: Cross multiply
    6,642,784.20x = 9,964,176.30 × 2,155,060.20
  4. Step 4: Simplify right side
    6,642,784.20x = 21,473,399,769,913.26
  5. Step 5: Solve for x
    x = 21,473,399,769,913.26/6,642,784.20
  6. Step 6: Final answer
    x = 3,232,590.30

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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.