Home / 18,135,282.72-27,213,552.80-13,012,191.48

Finding the Fourth Proportional to 18,135,282.72, 27,213,552.80 and 13,012,191.48

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Solution

The fourth proportional to 18,135,282.72, 27,213,552.80 and 13,012,191.48 is: 19,525,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135,282.72 : 27,213,552.80 = 13,012,191.48 : x
  2. Step 2: Convert to fraction form
    18,135,282.72/27,213,552.80 = 13,012,191.48/x
  3. Step 3: Cross multiply
    18,135,282.72x = 27,213,552.80 × 13,012,191.48
  4. Step 4: Simplify right side
    18,135,282.72x = 354,107,959,884,690.19
  5. Step 5: Solve for x
    x = 354,107,959,884,690.19/18,135,282.72
  6. Step 6: Final answer
    x = 19,525,913.40

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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.