Home / 2,105,702.29-2,906,226.45-1,188,191.53

Finding the Fourth Proportional to 2,105,702.29, 2,906,226.45 and 1,188,191.53

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Solution

The fourth proportional to 2,105,702.29, 2,906,226.45 and 1,188,191.53 is: 1,639,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,702.29 : 2,906,226.45 = 1,188,191.53 : x
  2. Step 2: Convert to fraction form
    2,105,702.29/2,906,226.45 = 1,188,191.53/x
  3. Step 3: Cross multiply
    2,105,702.29x = 2,906,226.45 × 1,188,191.53
  4. Step 4: Simplify right side
    2,105,702.29x = 3,453,153,652,151.97
  5. Step 5: Solve for x
    x = 3,453,153,652,151.97/2,105,702.29
  6. Step 6: Final answer
    x = 1,639,905.92

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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.