Home / 20,738,202.40-31,111,316.80-7,957,713.39

Finding the Fourth Proportional to 20,738,202.40, 31,111,316.80 and 7,957,713.39

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Solution

The fourth proportional to 20,738,202.40, 31,111,316.80 and 7,957,713.39 is: 11,938,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,202.40 : 31,111,316.80 = 7,957,713.39 : x
  2. Step 2: Convert to fraction form
    20,738,202.40/31,111,316.80 = 7,957,713.39/x
  3. Step 3: Cross multiply
    20,738,202.40x = 31,111,316.80 × 7,957,713.39
  4. Step 4: Simplify right side
    20,738,202.40x = 247,574,942,143,330.25
  5. Step 5: Solve for x
    x = 247,574,942,143,330.25/20,738,202.40
  6. Step 6: Final answer
    x = 11,938,110.03

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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.