Home / 2,136,922.80-3,205,384.20-1,421,919.60

Finding the Fourth Proportional to 2,136,922.80, 3,205,384.20 and 1,421,919.60

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Solution

The fourth proportional to 2,136,922.80, 3,205,384.20 and 1,421,919.60 is: 2,132,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,922.80 : 3,205,384.20 = 1,421,919.60 : x
  2. Step 2: Convert to fraction form
    2,136,922.80/3,205,384.20 = 1,421,919.60/x
  3. Step 3: Cross multiply
    2,136,922.80x = 3,205,384.20 × 1,421,919.60
  4. Step 4: Simplify right side
    2,136,922.80x = 4,557,798,619,510.32
  5. Step 5: Solve for x
    x = 4,557,798,619,510.32/2,136,922.80
  6. Step 6: Final answer
    x = 2,132,879.40

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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.