Home / 13,690,037.63-18,893,301.20-7,809,801.23

Finding the Fourth Proportional to 13,690,037.63, 18,893,301.20 and 7,809,801.23

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Solution

The fourth proportional to 13,690,037.63, 18,893,301.20 and 7,809,801.23 is: 10,778,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,037.63 : 18,893,301.20 = 7,809,801.23 : x
  2. Step 2: Convert to fraction form
    13,690,037.63/18,893,301.20 = 7,809,801.23/x
  3. Step 3: Cross multiply
    13,690,037.63x = 18,893,301.20 × 7,809,801.23
  4. Step 4: Simplify right side
    13,690,037.63x = 147,552,926,817,004.97
  5. Step 5: Solve for x
    x = 147,552,926,817,004.97/13,690,037.63
  6. Step 6: Final answer
    x = 10,778,124.27

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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.