Home / 8,322,638.40-12,483,957.60-6,643,022.40

Finding the Fourth Proportional to 8,322,638.40, 12,483,957.60 and 6,643,022.40

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Solution

The fourth proportional to 8,322,638.40, 12,483,957.60 and 6,643,022.40 is: 9,964,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322,638.40 : 12,483,957.60 = 6,643,022.40 : x
  2. Step 2: Convert to fraction form
    8,322,638.40/12,483,957.60 = 6,643,022.40/x
  3. Step 3: Cross multiply
    8,322,638.40x = 12,483,957.60 × 6,643,022.40
  4. Step 4: Simplify right side
    8,322,638.40x = 82,931,209,977,450.23
  5. Step 5: Solve for x
    x = 82,931,209,977,450.23/8,322,638.40
  6. Step 6: Final answer
    x = 9,964,533.60

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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.