Home / 90,902,958.41-125,442,458.30-51,209,564.51

Finding the Fourth Proportional to 90,902,958.41, 125,442,458.30 and 51,209,564.51

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Solution

The fourth proportional to 90,902,958.41, 125,442,458.30 and 51,209,564.51 is: 70,667,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,902,958.41 : 125,442,458.30 = 51,209,564.51 : x
  2. Step 2: Convert to fraction form
    90,902,958.41/125,442,458.30 = 51,209,564.51/x
  3. Step 3: Cross multiply
    90,902,958.41x = 125,442,458.30 × 51,209,564.51
  4. Step 4: Simplify right side
    90,902,958.41x = 6,423,853,660,107,647
  5. Step 5: Solve for x
    x = 6,423,853,660,107,647/90,902,958.41
  6. Step 6: Final answer
    x = 70,667,157.29

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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.