Home / 12,739,923.60-19,109,885.40-3,642,003.60

Finding the Fourth Proportional to 12,739,923.60, 19,109,885.40 and 3,642,003.60

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Solution

The fourth proportional to 12,739,923.60, 19,109,885.40 and 3,642,003.60 is: 5,463,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739,923.60 : 19,109,885.40 = 3,642,003.60 : x
  2. Step 2: Convert to fraction form
    12,739,923.60/19,109,885.40 = 3,642,003.60/x
  3. Step 3: Cross multiply
    12,739,923.60x = 19,109,885.40 × 3,642,003.60
  4. Step 4: Simplify right side
    12,739,923.60x = 69,598,271,422,387.44
  5. Step 5: Solve for x
    x = 69,598,271,422,387.44/12,739,923.60
  6. Step 6: Final answer
    x = 5,463,005.40

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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.