Home / 2,113,805.80-3,170,708.70-1,357,978.60

Finding the Fourth Proportional to 2,113,805.80, 3,170,708.70 and 1,357,978.60

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Solution

The fourth proportional to 2,113,805.80, 3,170,708.70 and 1,357,978.60 is: 2,036,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,805.80 : 3,170,708.70 = 1,357,978.60 : x
  2. Step 2: Convert to fraction form
    2,113,805.80/3,170,708.70 = 1,357,978.60/x
  3. Step 3: Cross multiply
    2,113,805.80x = 3,170,708.70 × 1,357,978.60
  4. Step 4: Simplify right side
    2,113,805.80x = 4,305,754,561,433.82
  5. Step 5: Solve for x
    x = 4,305,754,561,433.82/2,113,805.80
  6. Step 6: Final answer
    x = 2,036,967.90

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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.