Home / 28,969,294.50-40,012,993.73-21,659,544.98

Finding the Fourth Proportional to 28,969,294.50, 40,012,993.73 and 21,659,544.98

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Solution

The fourth proportional to 28,969,294.50, 40,012,993.73 and 21,659,544.98 is: 29,916,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969,294.50 : 40,012,993.73 = 21,659,544.98 : x
  2. Step 2: Convert to fraction form
    28,969,294.50/40,012,993.73 = 21,659,544.98/x
  3. Step 3: Cross multiply
    28,969,294.50x = 40,012,993.73 × 21,659,544.98
  4. Step 4: Simplify right side
    28,969,294.50x = 866,663,237,171,030.38
  5. Step 5: Solve for x
    x = 866,663,237,171,030.38/28,969,294.50
  6. Step 6: Final answer
    x = 29,916,615.23

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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.