Home / 1,980,834.16-2,736,115.34-1,638,054.71

Finding the Fourth Proportional to 1,980,834.16, 2,736,115.34 and 1,638,054.71

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Solution

The fourth proportional to 1,980,834.16, 2,736,115.34 and 1,638,054.71 is: 2,262,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,834.16 : 2,736,115.34 = 1,638,054.71 : x
  2. Step 2: Convert to fraction form
    1,980,834.16/2,736,115.34 = 1,638,054.71/x
  3. Step 3: Cross multiply
    1,980,834.16x = 2,736,115.34 × 1,638,054.71
  4. Step 4: Simplify right side
    1,980,834.16x = 4,481,906,619,158.70
  5. Step 5: Solve for x
    x = 4,481,906,619,158.70/1,980,834.16
  6. Step 6: Final answer
    x = 2,262,635.97

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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.