Home / 28,474,180.80-39,294,357.04-15,421,439.46

Finding the Fourth Proportional to 28,474,180.80, 39,294,357.04 and 15,421,439.46

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Solution

The fourth proportional to 28,474,180.80, 39,294,357.04 and 15,421,439.46 is: 21,281,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474,180.80 : 39,294,357.04 = 15,421,439.46 : x
  2. Step 2: Convert to fraction form
    28,474,180.80/39,294,357.04 = 15,421,439.46/x
  3. Step 3: Cross multiply
    28,474,180.80x = 39,294,357.04 × 15,421,439.46
  4. Step 4: Simplify right side
    28,474,180.80x = 605,975,548,211,984.88
  5. Step 5: Solve for x
    x = 605,975,548,211,984.88/28,474,180.80
  6. Step 6: Final answer
    x = 21,281,579.70

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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.