Home / 8,085,346.30-12,128,019.45-5,380,902.10

Finding the Fourth Proportional to 8,085,346.30, 12,128,019.45 and 5,380,902.10

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Solution

The fourth proportional to 8,085,346.30, 12,128,019.45 and 5,380,902.10 is: 8,071,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,346.30 : 12,128,019.45 = 5,380,902.10 : x
  2. Step 2: Convert to fraction form
    8,085,346.30/12,128,019.45 = 5,380,902.10/x
  3. Step 3: Cross multiply
    8,085,346.30x = 12,128,019.45 × 5,380,902.10
  4. Step 4: Simplify right side
    8,085,346.30x = 65,259,685,327,345.84
  5. Step 5: Solve for x
    x = 65,259,685,327,345.84/8,085,346.30
  6. Step 6: Final answer
    x = 8,071,353.15

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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.