Home / 8,128,527.48-11,218,594.20-5,189,600.28

Finding the Fourth Proportional to 8,128,527.48, 11,218,594.20 and 5,189,600.28

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Solution

The fourth proportional to 8,128,527.48, 11,218,594.20 and 5,189,600.28 is: 7,162,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,527.48 : 11,218,594.20 = 5,189,600.28 : x
  2. Step 2: Convert to fraction form
    8,128,527.48/11,218,594.20 = 5,189,600.28/x
  3. Step 3: Cross multiply
    8,128,527.48x = 11,218,594.20 × 5,189,600.28
  4. Step 4: Simplify right side
    8,128,527.48x = 58,220,019,601,526.38
  5. Step 5: Solve for x
    x = 58,220,019,601,526.38/8,128,527.48
  6. Step 6: Final answer
    x = 7,162,431.29

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Double scale
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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.