Home / 28,133,999.57-38,826,555.64-15,743,986.04

Finding the Fourth Proportional to 28,133,999.57, 38,826,555.64 and 15,743,986.04

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Solution

The fourth proportional to 28,133,999.57, 38,826,555.64 and 15,743,986.04 is: 21,727,616.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133,999.57 : 38,826,555.64 = 15,743,986.04 : x
  2. Step 2: Convert to fraction form
    28,133,999.57/38,826,555.64 = 15,743,986.04/x
  3. Step 3: Cross multiply
    28,133,999.57x = 38,826,555.64 × 15,743,986.04
  4. Step 4: Simplify right side
    28,133,999.57x = 611,284,750,035,149.75
  5. Step 5: Solve for x
    x = 611,284,750,035,149.75/28,133,999.57
  6. Step 6: Final answer
    x = 21,727,616.38

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1.5x scale

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.