Home / 6,642,752.40-9,964,128.60-2,155,028.40

Finding the Fourth Proportional to 6,642,752.40, 9,964,128.60 and 2,155,028.40

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Solution

The fourth proportional to 6,642,752.40, 9,964,128.60 and 2,155,028.40 is: 3,232,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,752.40 : 9,964,128.60 = 2,155,028.40 : x
  2. Step 2: Convert to fraction form
    6,642,752.40/9,964,128.60 = 2,155,028.40/x
  3. Step 3: Cross multiply
    6,642,752.40x = 9,964,128.60 × 2,155,028.40
  4. Step 4: Simplify right side
    6,642,752.40x = 21,472,980,114,252.24
  5. Step 5: Solve for x
    x = 21,472,980,114,252.24/6,642,752.40
  6. Step 6: Final answer
    x = 3,232,542.60

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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.