Home / 39,960,915.93-55,146,063.42-21,626,201.43

Finding the Fourth Proportional to 39,960,915.93, 55,146,063.42 and 21,626,201.43

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Solution

The fourth proportional to 39,960,915.93, 55,146,063.42 and 21,626,201.43 is: 29,844,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,915.93 : 55,146,063.42 = 21,626,201.43 : x
  2. Step 2: Convert to fraction form
    39,960,915.93/55,146,063.42 = 21,626,201.43/x
  3. Step 3: Cross multiply
    39,960,915.93x = 55,146,063.42 × 21,626,201.43
  4. Step 4: Simplify right side
    39,960,915.93x = 1,192,599,875,592,474.75
  5. Step 5: Solve for x
    x = 1,192,599,875,592,474.75/39,960,915.93
  6. Step 6: Final answer
    x = 29,844,157.67

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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.