Home / 12,879,333.60-19,319,000.40-9,310,149.60

Finding the Fourth Proportional to 12,879,333.60, 19,319,000.40 and 9,310,149.60

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Solution

The fourth proportional to 12,879,333.60, 19,319,000.40 and 9,310,149.60 is: 13,965,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,333.60 : 19,319,000.40 = 9,310,149.60 : x
  2. Step 2: Convert to fraction form
    12,879,333.60/19,319,000.40 = 9,310,149.60/x
  3. Step 3: Cross multiply
    12,879,333.60x = 19,319,000.40 × 9,310,149.60
  4. Step 4: Simplify right side
    12,879,333.60x = 179,862,783,846,459.81
  5. Step 5: Solve for x
    x = 179,862,783,846,459.81/12,879,333.60
  6. Step 6: Final answer
    x = 13,965,224.40

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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.