Home / 2,790,643.80-4,181,664.90-2,077,325.40

Finding the Fourth Proportional to 2,790,643.80, 4,181,664.90 and 2,077,325.40

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Solution

The fourth proportional to 2,790,643.80, 4,181,664.90 and 2,077,325.40 is: 3,112,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,643.80 : 4,181,664.90 = 2,077,325.40 : x
  2. Step 2: Convert to fraction form
    2,790,643.80/4,181,664.90 = 2,077,325.40/x
  3. Step 3: Cross multiply
    2,790,643.80x = 4,181,664.90 × 2,077,325.40
  4. Step 4: Simplify right side
    2,790,643.80x = 8,686,678,711,058.46
  5. Step 5: Solve for x
    x = 8,686,678,711,058.46/2,790,643.80
  6. Step 6: Final answer
    x = 3,112,786.63

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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.