Home / 6,439,816.40-9,659,724.60-4,200,328.40

Finding the Fourth Proportional to 6,439,816.40, 9,659,724.60 and 4,200,328.40

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Solution

The fourth proportional to 6,439,816.40, 9,659,724.60 and 4,200,328.40 is: 6,300,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,816.40 : 9,659,724.60 = 4,200,328.40 : x
  2. Step 2: Convert to fraction form
    6,439,816.40/9,659,724.60 = 4,200,328.40/x
  3. Step 3: Cross multiply
    6,439,816.40x = 9,659,724.60 × 4,200,328.40
  4. Step 4: Simplify right side
    6,439,816.40x = 40,574,015,573,558.64
  5. Step 5: Solve for x
    x = 40,574,015,573,558.64/6,439,816.40
  6. Step 6: Final answer
    x = 6,300,492.60

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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.