Home / 20,629,271.70-30,943,907.55-18,865,674.90

Finding the Fourth Proportional to 20,629,271.70, 30,943,907.55 and 18,865,674.90

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Solution

The fourth proportional to 20,629,271.70, 30,943,907.55 and 18,865,674.90 is: 28,298,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,271.70 : 30,943,907.55 = 18,865,674.90 : x
  2. Step 2: Convert to fraction form
    20,629,271.70/30,943,907.55 = 18,865,674.90/x
  3. Step 3: Cross multiply
    20,629,271.70x = 30,943,907.55 × 18,865,674.90
  4. Step 4: Simplify right side
    20,629,271.70x = 583,777,699,973,955.50
  5. Step 5: Solve for x
    x = 583,777,699,973,955.50/20,629,271.70
  6. Step 6: Final answer
    x = 28,298,512.35

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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.