Home / 3,578,727.81-4,938,606.07-2,128,391.43

Finding the Fourth Proportional to 3,578,727.81, 4,938,606.07 and 2,128,391.43

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Solution

The fourth proportional to 3,578,727.81, 4,938,606.07 and 2,128,391.43 is: 2,937,157.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578,727.81 : 4,938,606.07 = 2,128,391.43 : x
  2. Step 2: Convert to fraction form
    3,578,727.81/4,938,606.07 = 2,128,391.43/x
  3. Step 3: Cross multiply
    3,578,727.81x = 4,938,606.07 × 2,128,391.43
  4. Step 4: Simplify right side
    3,578,727.81x = 10,511,286,835,533.98
  5. Step 5: Solve for x
    x = 10,511,286,835,533.98/3,578,727.81
  6. Step 6: Final answer
    x = 2,937,157.39

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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.