Home / 2,138,563.32-2,950,490.70-1,220,132.76

Finding the Fourth Proportional to 2,138,563.32, 2,950,490.70 and 1,220,132.76

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Solution

The fourth proportional to 2,138,563.32, 2,950,490.70 and 1,220,132.76 is: 1,683,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,563.32 : 2,950,490.70 = 1,220,132.76 : x
  2. Step 2: Convert to fraction form
    2,138,563.32/2,950,490.70 = 1,220,132.76/x
  3. Step 3: Cross multiply
    2,138,563.32x = 2,950,490.70 × 1,220,132.76
  4. Step 4: Simplify right side
    2,138,563.32x = 3,599,990,361,145.33
  5. Step 5: Solve for x
    x = 3,599,990,361,145.33/2,138,563.32
  6. Step 6: Final answer
    x = 1,683,368.61

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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.