Home / 219,883,790.70-329,863,010.85-66,528,629.10

Finding the Fourth Proportional to 219,883,790.70, 329,863,010.85 and 66,528,629.10

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Solution

The fourth proportional to 219,883,790.70, 329,863,010.85 and 66,528,629.10 is: 99,804,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,883,790.70 : 329,863,010.85 = 66,528,629.10 : x
  2. Step 2: Convert to fraction form
    219,883,790.70/329,863,010.85 = 66,528,629.10/x
  3. Step 3: Cross multiply
    219,883,790.70x = 329,863,010.85 × 66,528,629.10
  4. Step 4: Simplify right side
    219,883,790.70x = 21,945,333,902,648,928
  5. Step 5: Solve for x
    x = 21,945,333,902,648,928/219,883,790.70
  6. Step 6: Final answer
    x = 99,804,236.74

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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.