Home / 151,711,900-209,362,973.12-82,097,273.28

Finding the Fourth Proportional to 151,711,900, 209,362,973.12 and 82,097,273.28

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Solution

The fourth proportional to 151,711,900, 209,362,973.12 and 82,097,273.28 is: 113,294,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,711,900 : 209,362,973.12 = 82,097,273.28 : x
  2. Step 2: Convert to fraction form
    151,711,900/209,362,973.12 = 82,097,273.28/x
  3. Step 3: Cross multiply
    151,711,900x = 209,362,973.12 × 82,097,273.28
  4. Step 4: Simplify right side
    151,711,900x = 17,188,129,218,945,934
  5. Step 5: Solve for x
    x = 17,188,129,218,945,934/151,711,900
  6. Step 6: Final answer
    x = 113,294,535.36

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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.