Home / 3,518,638.40-5,271,736.80-3,120,507.20

Finding the Fourth Proportional to 3,518,638.40, 5,271,736.80 and 3,120,507.20

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Solution

The fourth proportional to 3,518,638.40, 5,271,736.80 and 3,120,507.20 is: 4,675,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518,638.40 : 5,271,736.80 = 3,120,507.20 : x
  2. Step 2: Convert to fraction form
    3,518,638.40/5,271,736.80 = 3,120,507.20/x
  3. Step 3: Cross multiply
    3,518,638.40x = 5,271,736.80 × 3,120,507.20
  4. Step 4: Simplify right side
    3,518,638.40x = 16,450,492,640,904.96
  5. Step 5: Solve for x
    x = 16,450,492,640,904.96/3,518,638.40
  6. Step 6: Final answer
    x = 4,675,243.88

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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.