Home / 72,921,260.31-100,631,114.03-39,430,504.96

Finding the Fourth Proportional to 72,921,260.31, 100,631,114.03 and 39,430,504.96

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Solution

The fourth proportional to 72,921,260.31, 100,631,114.03 and 39,430,504.96 is: 54,413,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,921,260.31 : 100,631,114.03 = 39,430,504.96 : x
  2. Step 2: Convert to fraction form
    72,921,260.31/100,631,114.03 = 39,430,504.96/x
  3. Step 3: Cross multiply
    72,921,260.31x = 100,631,114.03 × 39,430,504.96
  4. Step 4: Simplify right side
    72,921,260.31x = 3,967,935,640,737,239.50
  5. Step 5: Solve for x
    x = 3,967,935,640,737,239.50/72,921,260.31
  6. Step 6: Final answer
    x = 54,413,975.07

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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.