Home / 2,100,712.40-3,152,623.80-1,390,504.40

Finding the Fourth Proportional to 2,100,712.40, 3,152,623.80 and 1,390,504.40

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Solution

The fourth proportional to 2,100,712.40, 3,152,623.80 and 1,390,504.40 is: 2,086,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,712.40 : 3,152,623.80 = 1,390,504.40 : x
  2. Step 2: Convert to fraction form
    2,100,712.40/3,152,623.80 = 1,390,504.40/x
  3. Step 3: Cross multiply
    2,100,712.40x = 3,152,623.80 × 1,390,504.40
  4. Step 4: Simplify right side
    2,100,712.40x = 4,383,737,265,444.72
  5. Step 5: Solve for x
    x = 4,383,737,265,444.72/2,100,712.40
  6. Step 6: Final answer
    x = 2,086,786.02

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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.