Home / 6,521,036.25-8,998,678.74-3,620,240.40

Finding the Fourth Proportional to 6,521,036.25, 8,998,678.74 and 3,620,240.40

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Solution

The fourth proportional to 6,521,036.25, 8,998,678.74 and 3,620,240.40 is: 4,995,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521,036.25 : 8,998,678.74 = 3,620,240.40 : x
  2. Step 2: Convert to fraction form
    6,521,036.25/8,998,678.74 = 3,620,240.40/x
  3. Step 3: Cross multiply
    6,521,036.25x = 8,998,678.74 × 3,620,240.40
  4. Step 4: Simplify right side
    6,521,036.25x = 32,577,380,321,169.10
  5. Step 5: Solve for x
    x = 32,577,380,321,169.10/6,521,036.25
  6. Step 6: Final answer
    x = 4,995,736.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.