Home / 28,692,679.52-39,594,706.32-15,639,651.20

Finding the Fourth Proportional to 28,692,679.52, 39,594,706.32 and 15,639,651.20

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Solution

The fourth proportional to 28,692,679.52, 39,594,706.32 and 15,639,651.20 is: 21,582,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692,679.52 : 39,594,706.32 = 15,639,651.20 : x
  2. Step 2: Convert to fraction form
    28,692,679.52/39,594,706.32 = 15,639,651.20/x
  3. Step 3: Cross multiply
    28,692,679.52x = 39,594,706.32 × 15,639,651.20
  4. Step 4: Simplify right side
    28,692,679.52x = 619,247,396,211,235.50
  5. Step 5: Solve for x
    x = 619,247,396,211,235.50/28,692,679.52
  6. Step 6: Final answer
    x = 21,582,069.24

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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.