Home / 2,130,723.99-2,939,669.73-1,212,723.22

Finding the Fourth Proportional to 2,130,723.99, 2,939,669.73 and 1,212,723.22

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Solution

The fourth proportional to 2,130,723.99, 2,939,669.73 and 1,212,723.22 is: 1,673,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,723.99 : 2,939,669.73 = 1,212,723.22 : x
  2. Step 2: Convert to fraction form
    2,130,723.99/2,939,669.73 = 1,212,723.22/x
  3. Step 3: Cross multiply
    2,130,723.99x = 2,939,669.73 × 1,212,723.22
  4. Step 4: Simplify right side
    2,130,723.99x = 3,565,005,733,352.96
  5. Step 5: Solve for x
    x = 3,565,005,733,352.96/2,130,723.99
  6. Step 6: Final answer
    x = 1,673,142.91

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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.