Home / 2,180,643.36-3,009,386.70-1,213,835.28

Finding the Fourth Proportional to 2,180,643.36, 3,009,386.70 and 1,213,835.28

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Solution

The fourth proportional to 2,180,643.36, 3,009,386.70 and 1,213,835.28 is: 1,675,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,643.36 : 3,009,386.70 = 1,213,835.28 : x
  2. Step 2: Convert to fraction form
    2,180,643.36/3,009,386.70 = 1,213,835.28/x
  3. Step 3: Cross multiply
    2,180,643.36x = 3,009,386.70 × 1,213,835.28
  4. Step 4: Simplify right side
    2,180,643.36x = 3,652,899,747,622.78
  5. Step 5: Solve for x
    x = 3,652,899,747,622.78/2,180,643.36
  6. Step 6: Final answer
    x = 1,675,147.72

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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.