Home / 3,111,190.20-4,293,444.78-1,680,406.20

Finding the Fourth Proportional to 3,111,190.20, 4,293,444.78 and 1,680,406.20

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Solution

The fourth proportional to 3,111,190.20, 4,293,444.78 and 1,680,406.20 is: 2,318,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,190.20 : 4,293,444.78 = 1,680,406.20 : x
  2. Step 2: Convert to fraction form
    3,111,190.20/4,293,444.78 = 1,680,406.20/x
  3. Step 3: Cross multiply
    3,111,190.20x = 4,293,444.78 × 1,680,406.20
  4. Step 4: Simplify right side
    3,111,190.20x = 7,214,731,227,669.64
  5. Step 5: Solve for x
    x = 7,214,731,227,669.64/3,111,190.20
  6. Step 6: Final answer
    x = 2,318,961.80

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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.