Home / 2,878,629.30-4,308,570.09-2,120,172.30

Finding the Fourth Proportional to 2,878,629.30, 4,308,570.09 and 2,120,172.30

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Solution

The fourth proportional to 2,878,629.30, 4,308,570.09 and 2,120,172.30 is: 3,173,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,629.30 : 4,308,570.09 = 2,120,172.30 : x
  2. Step 2: Convert to fraction form
    2,878,629.30/4,308,570.09 = 2,120,172.30/x
  3. Step 3: Cross multiply
    2,878,629.30x = 4,308,570.09 × 2,120,172.30
  4. Step 4: Simplify right side
    2,878,629.30x = 9,134,910,957,426.51
  5. Step 5: Solve for x
    x = 9,134,910,957,426.51/2,878,629.30
  6. Step 6: Final answer
    x = 3,173,354.40

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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.