Home / 6,642,841.20-9,964,261.80-2,155,117.20

Finding the Fourth Proportional to 6,642,841.20, 9,964,261.80 and 2,155,117.20

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Solution

The fourth proportional to 6,642,841.20, 9,964,261.80 and 2,155,117.20 is: 3,232,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,841.20 : 9,964,261.80 = 2,155,117.20 : x
  2. Step 2: Convert to fraction form
    6,642,841.20/9,964,261.80 = 2,155,117.20/x
  3. Step 3: Cross multiply
    6,642,841.20x = 9,964,261.80 × 2,155,117.20
  4. Step 4: Simplify right side
    6,642,841.20x = 21,474,151,990,482.96
  5. Step 5: Solve for x
    x = 21,474,151,990,482.96/6,642,841.20
  6. Step 6: Final answer
    x = 3,232,675.80

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Double scale
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Similar ratio
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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.