Home / 12,181,191.90-18,271,801.49-3,661,528.20

Finding the Fourth Proportional to 12,181,191.90, 18,271,801.49 and 3,661,528.20

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Solution

The fourth proportional to 12,181,191.90, 18,271,801.49 and 3,661,528.20 is: 5,492,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,191.90 : 18,271,801.49 = 3,661,528.20 : x
  2. Step 2: Convert to fraction form
    12,181,191.90/18,271,801.49 = 3,661,528.20/x
  3. Step 3: Cross multiply
    12,181,191.90x = 18,271,801.49 × 3,661,528.20
  4. Step 4: Simplify right side
    12,181,191.90x = 66,902,716,402,129.38
  5. Step 5: Solve for x
    x = 66,902,716,402,129.38/12,181,191.90
  6. Step 6: Final answer
    x = 5,492,296.40

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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.