Home / 13,330,261.60-19,995,392.40-12,290,999.20

Finding the Fourth Proportional to 13,330,261.60, 19,995,392.40 and 12,290,999.20

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Solution

The fourth proportional to 13,330,261.60, 19,995,392.40 and 12,290,999.20 is: 18,436,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330,261.60 : 19,995,392.40 = 12,290,999.20 : x
  2. Step 2: Convert to fraction form
    13,330,261.60/19,995,392.40 = 12,290,999.20/x
  3. Step 3: Cross multiply
    13,330,261.60x = 19,995,392.40 × 12,290,999.20
  4. Step 4: Simplify right side
    13,330,261.60x = 245,763,351,992,086.03
  5. Step 5: Solve for x
    x = 245,763,351,992,086.03/13,330,261.60
  6. Step 6: Final answer
    x = 18,436,498.80

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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.