Home / 6,642,465.40-9,963,698.10-2,154,741.40

Finding the Fourth Proportional to 6,642,465.40, 9,963,698.10 and 2,154,741.40

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Solution

The fourth proportional to 6,642,465.40, 9,963,698.10 and 2,154,741.40 is: 3,232,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,465.40 : 9,963,698.10 = 2,154,741.40 : x
  2. Step 2: Convert to fraction form
    6,642,465.40/9,963,698.10 = 2,154,741.40/x
  3. Step 3: Cross multiply
    6,642,465.40x = 9,963,698.10 × 2,154,741.40
  4. Step 4: Simplify right side
    6,642,465.40x = 21,469,192,793,171.34
  5. Step 5: Solve for x
    x = 21,469,192,793,171.34/6,642,465.40
  6. Step 6: Final answer
    x = 3,232,112.10

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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.