Home / 13,138,975.30-18,000,095.46-12,647,737.84

Finding the Fourth Proportional to 13,138,975.30, 18,000,095.46 and 12,647,737.84

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Solution

The fourth proportional to 13,138,975.30, 18,000,095.46 and 12,647,737.84 is: 17,327,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,975.30 : 18,000,095.46 = 12,647,737.84 : x
  2. Step 2: Convert to fraction form
    13,138,975.30/18,000,095.46 = 12,647,737.84/x
  3. Step 3: Cross multiply
    13,138,975.30x = 18,000,095.46 × 12,647,737.84
  4. Step 4: Simplify right side
    13,138,975.30x = 227,660,488,473,054.22
  5. Step 5: Solve for x
    x = 227,660,488,473,054.22/13,138,975.30
  6. Step 6: Final answer
    x = 17,327,111.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.