Home / 12,992,015.20-19,488,022.80-6,261,109.60

Finding the Fourth Proportional to 12,992,015.20, 19,488,022.80 and 6,261,109.60

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Solution

The fourth proportional to 12,992,015.20, 19,488,022.80 and 6,261,109.60 is: 9,391,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992,015.20 : 19,488,022.80 = 6,261,109.60 : x
  2. Step 2: Convert to fraction form
    12,992,015.20/19,488,022.80 = 6,261,109.60/x
  3. Step 3: Cross multiply
    12,992,015.20x = 19,488,022.80 × 6,261,109.60
  4. Step 4: Simplify right side
    12,992,015.20x = 122,016,646,638,098.88
  5. Step 5: Solve for x
    x = 122,016,646,638,098.88/12,992,015.20
  6. Step 6: Final answer
    x = 9,391,664.40

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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.