Home / 1,913,213.03-2,640,134.34-1,188,045.23

Finding the Fourth Proportional to 1,913,213.03, 2,640,134.34 and 1,188,045.23

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Solution

The fourth proportional to 1,913,213.03, 2,640,134.34 and 1,188,045.23 is: 1,639,440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,213.03 : 2,640,134.34 = 1,188,045.23 : x
  2. Step 2: Convert to fraction form
    1,913,213.03/2,640,134.34 = 1,188,045.23/x
  3. Step 3: Cross multiply
    1,913,213.03x = 2,640,134.34 × 1,188,045.23
  4. Step 4: Simplify right side
    1,913,213.03x = 3,136,599,009,196.20
  5. Step 5: Solve for x
    x = 3,136,599,009,196.20/1,913,213.03
  6. Step 6: Final answer
    x = 1,639,440.54

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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.