Home / 12,590,959.80-18,886,439.70-8,055,996.60

Finding the Fourth Proportional to 12,590,959.80, 18,886,439.70 and 8,055,996.60

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Solution

The fourth proportional to 12,590,959.80, 18,886,439.70 and 8,055,996.60 is: 12,083,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,959.80 : 18,886,439.70 = 8,055,996.60 : x
  2. Step 2: Convert to fraction form
    12,590,959.80/18,886,439.70 = 8,055,996.60/x
  3. Step 3: Cross multiply
    12,590,959.80x = 18,886,439.70 × 8,055,996.60
  4. Step 4: Simplify right side
    12,590,959.80x = 152,149,094,009,305
  5. Step 5: Solve for x
    x = 152,149,094,009,305/12,590,959.80
  6. Step 6: Final answer
    x = 12,083,994.90

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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.