Home / 12,193,999.60-18,290,999.40-10,209,953.20

Finding the Fourth Proportional to 12,193,999.60, 18,290,999.40 and 10,209,953.20

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Solution

The fourth proportional to 12,193,999.60, 18,290,999.40 and 10,209,953.20 is: 15,314,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193,999.60 : 18,290,999.40 = 10,209,953.20 : x
  2. Step 2: Convert to fraction form
    12,193,999.60/18,290,999.40 = 10,209,953.20/x
  3. Step 3: Cross multiply
    12,193,999.60x = 18,290,999.40 × 10,209,953.20
  4. Step 4: Simplify right side
    12,193,999.60x = 186,750,247,855,228.06
  5. Step 5: Solve for x
    x = 186,750,247,855,228.06/12,193,999.60
  6. Step 6: Final answer
    x = 15,314,929.80

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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.