Home / 19,157,540.80-28,736,311.20-7,792,139.20

Finding the Fourth Proportional to 19,157,540.80, 28,736,311.20 and 7,792,139.20

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Solution

The fourth proportional to 19,157,540.80, 28,736,311.20 and 7,792,139.20 is: 11,688,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,540.80 : 28,736,311.20 = 7,792,139.20 : x
  2. Step 2: Convert to fraction form
    19,157,540.80/28,736,311.20 = 7,792,139.20/x
  3. Step 3: Cross multiply
    19,157,540.80x = 28,736,311.20 × 7,792,139.20
  4. Step 4: Simplify right side
    19,157,540.80x = 223,917,336,964,919.03
  5. Step 5: Solve for x
    x = 223,917,336,964,919.03/19,157,540.80
  6. Step 6: Final answer
    x = 11,688,208.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.