Home / 2,136,795.30-2,949,059.16-1,218,814.20

Finding the Fourth Proportional to 2,136,795.30, 2,949,059.16 and 1,218,814.20

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Solution

The fourth proportional to 2,136,795.30, 2,949,059.16 and 1,218,814.20 is: 1,682,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,795.30 : 2,949,059.16 = 1,218,814.20 : x
  2. Step 2: Convert to fraction form
    2,136,795.30/2,949,059.16 = 1,218,814.20/x
  3. Step 3: Cross multiply
    2,136,795.30x = 2,949,059.16 × 1,218,814.20
  4. Step 4: Simplify right side
    2,136,795.30x = 3,594,355,180,848.07
  5. Step 5: Solve for x
    x = 3,594,355,180,848.07/2,136,795.30
  6. Step 6: Final answer
    x = 1,682,124.25

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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.