Home / 13,828,763.70-20,743,145.55-12,458,826.90

Finding the Fourth Proportional to 13,828,763.70, 20,743,145.55 and 12,458,826.90

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Solution

The fourth proportional to 13,828,763.70, 20,743,145.55 and 12,458,826.90 is: 18,688,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,763.70 : 20,743,145.55 = 12,458,826.90 : x
  2. Step 2: Convert to fraction form
    13,828,763.70/20,743,145.55 = 12,458,826.90/x
  3. Step 3: Cross multiply
    13,828,763.70x = 20,743,145.55 × 12,458,826.90
  4. Step 4: Simplify right side
    13,828,763.70x = 258,435,259,768,955.31
  5. Step 5: Solve for x
    x = 258,435,259,768,955.31/13,828,763.70
  6. Step 6: Final answer
    x = 18,688,240.35

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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.