Home / 18,757,656.34-28,121,785.80-7,406,601.46

Finding the Fourth Proportional to 18,757,656.34, 28,121,785.80 and 7,406,601.46

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Solution

The fourth proportional to 18,757,656.34, 28,121,785.80 and 7,406,601.46 is: 11,104,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757,656.34 : 28,121,785.80 = 7,406,601.46 : x
  2. Step 2: Convert to fraction form
    18,757,656.34/28,121,785.80 = 7,406,601.46/x
  3. Step 3: Cross multiply
    18,757,656.34x = 28,121,785.80 × 7,406,601.46
  4. Step 4: Simplify right side
    18,757,656.34x = 208,286,859,764,087.28
  5. Step 5: Solve for x
    x = 208,286,859,764,087.28/18,757,656.34
  6. Step 6: Final answer
    x = 11,104,098.29

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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.