Home / 28,585,438.20-39,448,154.48-15,532,696.85

Finding the Fourth Proportional to 28,585,438.20, 39,448,154.48 and 15,532,696.85

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Solution

The fourth proportional to 28,585,438.20, 39,448,154.48 and 15,532,696.85 is: 21,435,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585,438.20 : 39,448,154.48 = 15,532,696.85 : x
  2. Step 2: Convert to fraction form
    28,585,438.20/39,448,154.48 = 15,532,696.85/x
  3. Step 3: Cross multiply
    28,585,438.20x = 39,448,154.48 × 15,532,696.85
  4. Step 4: Simplify right side
    28,585,438.20x = 612,736,224,554,905.12
  5. Step 5: Solve for x
    x = 612,736,224,554,905.12/28,585,438.20
  6. Step 6: Final answer
    x = 21,435,257.36

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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.