Home / 2,138,879.40-3,208,319.10-2,124,133.80

Finding the Fourth Proportional to 2,138,879.40, 3,208,319.10 and 2,124,133.80

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Solution

The fourth proportional to 2,138,879.40, 3,208,319.10 and 2,124,133.80 is: 3,186,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,879.40 : 3,208,319.10 = 2,124,133.80 : x
  2. Step 2: Convert to fraction form
    2,138,879.40/3,208,319.10 = 2,124,133.80/x
  3. Step 3: Cross multiply
    2,138,879.40x = 3,208,319.10 × 2,124,133.80
  4. Step 4: Simplify right side
    2,138,879.40x = 6,814,899,041,495.58
  5. Step 5: Solve for x
    x = 6,814,899,041,495.58/2,138,879.40
  6. Step 6: Final answer
    x = 3,186,200.70

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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.