Home / 721,071,511.08-1,081,455,912.36-203,380,885.56

Finding the Fourth Proportional to 721,071,511.08, 1,081,455,912.36 and 203,380,885.56

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Solution

The fourth proportional to 721,071,511.08, 1,081,455,912.36 and 203,380,885.56 is: 305,028,638.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,071,511.08 : 1,081,455,912.36 = 203,380,885.56 : x
  2. Step 2: Convert to fraction form
    721,071,511.08/1,081,455,912.36 = 203,380,885.56/x
  3. Step 3: Cross multiply
    721,071,511.08x = 1,081,455,912.36 × 203,380,885.56
  4. Step 4: Simplify right side
    721,071,511.08x = 219,947,461,149,874,528
  5. Step 5: Solve for x
    x = 219,947,461,149,874,528/721,071,511.08
  6. Step 6: Final answer
    x = 305,028,638.31

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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.