Home / 2,997,112.12-4,135,953.05-1,638,985.12

Finding the Fourth Proportional to 2,997,112.12, 4,135,953.05 and 1,638,985.12

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Solution

The fourth proportional to 2,997,112.12, 4,135,953.05 and 1,638,985.12 is: 2,261,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997,112.12 : 4,135,953.05 = 1,638,985.12 : x
  2. Step 2: Convert to fraction form
    2,997,112.12/4,135,953.05 = 1,638,985.12/x
  3. Step 3: Cross multiply
    2,997,112.12x = 4,135,953.05 × 1,638,985.12
  4. Step 4: Simplify right side
    2,997,112.12x = 6,778,765,493,580.00
  5. Step 5: Solve for x
    x = 6,778,765,493,580.00/2,997,112.12
  6. Step 6: Final answer
    x = 2,261,765.74

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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.