Home / 163,991,009.30-226,298,711.86-90,647,427.38

Finding the Fourth Proportional to 163,991,009.30, 226,298,711.86 and 90,647,427.38

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Solution

The fourth proportional to 163,991,009.30, 226,298,711.86 and 90,647,427.38 is: 125,088,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,991,009.30 : 226,298,711.86 = 90,647,427.38 : x
  2. Step 2: Convert to fraction form
    163,991,009.30/226,298,711.86 = 90,647,427.38/x
  3. Step 3: Cross multiply
    163,991,009.30x = 226,298,711.86 × 90,647,427.38
  4. Step 4: Simplify right side
    163,991,009.30x = 20,513,396,048,158,780
  5. Step 5: Solve for x
    x = 20,513,396,048,158,780/163,991,009.30
  6. Step 6: Final answer
    x = 125,088,540.75

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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.