Home / 165,998,711.70-229,097,651.94-138,072,152.16

Finding the Fourth Proportional to 165,998,711.70, 229,097,651.94 and 138,072,152.16

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Solution

The fourth proportional to 165,998,711.70, 229,097,651.94 and 138,072,152.16 is: 190,555,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,998,711.70 : 229,097,651.94 = 138,072,152.16 : x
  2. Step 2: Convert to fraction form
    165,998,711.70/229,097,651.94 = 138,072,152.16/x
  3. Step 3: Cross multiply
    165,998,711.70x = 229,097,651.94 × 138,072,152.16
  4. Step 4: Simplify right side
    165,998,711.70x = 31,632,005,858,158,400
  5. Step 5: Solve for x
    x = 31,632,005,858,158,400/165,998,711.70
  6. Step 6: Final answer
    x = 190,555,731.03

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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.