Home / 2,187,493.14-3,018,289.86-1,257,021.18

Finding the Fourth Proportional to 2,187,493.14, 3,018,289.86 and 1,257,021.18

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Solution

The fourth proportional to 2,187,493.14, 3,018,289.86 and 1,257,021.18 is: 1,734,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,493.14 : 3,018,289.86 = 1,257,021.18 : x
  2. Step 2: Convert to fraction form
    2,187,493.14/3,018,289.86 = 1,257,021.18/x
  3. Step 3: Cross multiply
    2,187,493.14x = 3,018,289.86 × 1,257,021.18
  4. Step 4: Simplify right side
    2,187,493.14x = 3,794,054,281,399.23
  5. Step 5: Solve for x
    x = 3,794,054,281,399.23/2,187,493.14
  6. Step 6: Final answer
    x = 1,734,430.25

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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.