Home / 20,712,458.58-28,595,454.75-18,414,271.50

Finding the Fourth Proportional to 20,712,458.58, 28,595,454.75 and 18,414,271.50

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Solution

The fourth proportional to 20,712,458.58, 28,595,454.75 and 18,414,271.50 is: 25,422,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,458.58 : 28,595,454.75 = 18,414,271.50 : x
  2. Step 2: Convert to fraction form
    20,712,458.58/28,595,454.75 = 18,414,271.50/x
  3. Step 3: Cross multiply
    20,712,458.58x = 28,595,454.75 × 18,414,271.50
  4. Step 4: Simplify right side
    20,712,458.58x = 526,564,467,432,464.62
  5. Step 5: Solve for x
    x = 526,564,467,432,464.62/20,712,458.58
  6. Step 6: Final answer
    x = 25,422,596.04

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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.