Home / 13,690,079.52-18,893,358.96-7,809,843.12

Finding the Fourth Proportional to 13,690,079.52, 18,893,358.96 and 7,809,843.12

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Solution

The fourth proportional to 13,690,079.52, 18,893,358.96 and 7,809,843.12 is: 10,778,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,079.52 : 18,893,358.96 = 7,809,843.12 : x
  2. Step 2: Convert to fraction form
    13,690,079.52/18,893,358.96 = 7,809,843.12/x
  3. Step 3: Cross multiply
    13,690,079.52x = 18,893,358.96 × 7,809,843.12
  4. Step 4: Simplify right side
    13,690,079.52x = 147,554,169,487,446.38
  5. Step 5: Solve for x
    x = 147,554,169,487,446.38/13,690,079.52
  6. Step 6: Final answer
    x = 10,778,182.06

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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.