Home / 28,585,425.68-39,448,137.20-15,532,684.32

Finding the Fourth Proportional to 28,585,425.68, 39,448,137.20 and 15,532,684.32

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Solution

The fourth proportional to 28,585,425.68, 39,448,137.20 and 15,532,684.32 is: 21,435,240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585,425.68 : 39,448,137.20 = 15,532,684.32 : x
  2. Step 2: Convert to fraction form
    28,585,425.68/39,448,137.20 = 15,532,684.32/x
  3. Step 3: Cross multiply
    28,585,425.68x = 39,448,137.20 × 15,532,684.32
  4. Step 4: Simplify right side
    28,585,425.68x = 612,735,462,139,648.75
  5. Step 5: Solve for x
    x = 612,735,462,139,648.75/28,585,425.68
  6. Step 6: Final answer
    x = 21,435,240.08

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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.