Home / 30,621,010.47-42,228,609.89-22,347,968.55

Finding the Fourth Proportional to 30,621,010.47, 42,228,609.89 and 22,347,968.55

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Solution

The fourth proportional to 30,621,010.47, 42,228,609.89 and 22,347,968.55 is: 30,819,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621,010.47 : 42,228,609.89 = 22,347,968.55 : x
  2. Step 2: Convert to fraction form
    30,621,010.47/42,228,609.89 = 22,347,968.55/x
  3. Step 3: Cross multiply
    30,621,010.47x = 42,228,609.89 × 22,347,968.55
  4. Step 4: Simplify right side
    30,621,010.47x = 943,723,645,524,706.75
  5. Step 5: Solve for x
    x = 943,723,645,524,706.75/30,621,010.47
  6. Step 6: Final answer
    x = 30,819,480.85

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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.