Home / 13,665,009.80-18,856,902.90-7,553,073.80

Finding the Fourth Proportional to 13,665,009.80, 18,856,902.90 and 7,553,073.80

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Solution

The fourth proportional to 13,665,009.80, 18,856,902.90 and 7,553,073.80 is: 10,422,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665,009.80 : 18,856,902.90 = 7,553,073.80 : x
  2. Step 2: Convert to fraction form
    13,665,009.80/18,856,902.90 = 7,553,073.80/x
  3. Step 3: Cross multiply
    13,665,009.80x = 18,856,902.90 × 7,553,073.80
  4. Step 4: Simplify right side
    13,665,009.80x = 142,427,579,243,134
  5. Step 5: Solve for x
    x = 142,427,579,243,134/13,665,009.80
  6. Step 6: Final answer
    x = 10,422,793.79

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1.5x scale

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.