Home / 13,690,080.52-18,893,360.34-7,809,844.12

Finding the Fourth Proportional to 13,690,080.52, 18,893,360.34 and 7,809,844.12

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Solution

The fourth proportional to 13,690,080.52, 18,893,360.34 and 7,809,844.12 is: 10,778,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,080.52 : 18,893,360.34 = 7,809,844.12 : x
  2. Step 2: Convert to fraction form
    13,690,080.52/18,893,360.34 = 7,809,844.12/x
  3. Step 3: Cross multiply
    13,690,080.52x = 18,893,360.34 × 7,809,844.12
  4. Step 4: Simplify right side
    13,690,080.52x = 147,554,199,158,390.19
  5. Step 5: Solve for x
    x = 147,554,199,158,390.19/13,690,080.52
  6. Step 6: Final answer
    x = 10,778,183.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.