Home / 18,820,790.42-28,228,941.36-5,175,323.06

Finding the Fourth Proportional to 18,820,790.42, 28,228,941.36 and 5,175,323.06

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Solution

The fourth proportional to 18,820,790.42, 28,228,941.36 and 5,175,323.06 is: 7,762,367.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820,790.42 : 28,228,941.36 = 5,175,323.06 : x
  2. Step 2: Convert to fraction form
    18,820,790.42/28,228,941.36 = 5,175,323.06/x
  3. Step 3: Cross multiply
    18,820,790.42x = 28,228,941.36 × 5,175,323.06
  4. Step 4: Simplify right side
    18,820,790.42x = 146,093,891,179,795.75
  5. Step 5: Solve for x
    x = 146,093,891,179,795.75/18,820,790.42
  6. Step 6: Final answer
    x = 7,762,367.46

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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.