Home / 6,387,890.40-9,581,835.60-3,193,509.60

Finding the Fourth Proportional to 6,387,890.40, 9,581,835.60 and 3,193,509.60

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Solution

The fourth proportional to 6,387,890.40, 9,581,835.60 and 3,193,509.60 is: 4,790,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387,890.40 : 9,581,835.60 = 3,193,509.60 : x
  2. Step 2: Convert to fraction form
    6,387,890.40/9,581,835.60 = 3,193,509.60/x
  3. Step 3: Cross multiply
    6,387,890.40x = 9,581,835.60 × 3,193,509.60
  4. Step 4: Simplify right side
    6,387,890.40x = 30,599,683,974,221.76
  5. Step 5: Solve for x
    x = 30,599,683,974,221.76/6,387,890.40
  6. Step 6: Final answer
    x = 4,790,264.40

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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.