Home / 20,634,734.70-28,445,920.46-14,420,487.60

Finding the Fourth Proportional to 20,634,734.70, 28,445,920.46 and 14,420,487.60

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Solution

The fourth proportional to 20,634,734.70, 28,445,920.46 and 14,420,487.60 is: 19,879,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634,734.70 : 28,445,920.46 = 14,420,487.60 : x
  2. Step 2: Convert to fraction form
    20,634,734.70/28,445,920.46 = 14,420,487.60/x
  3. Step 3: Cross multiply
    20,634,734.70x = 28,445,920.46 × 14,420,487.60
  4. Step 4: Simplify right side
    20,634,734.70x = 410,204,043,264,016.31
  5. Step 5: Solve for x
    x = 410,204,043,264,016.31/20,634,734.70
  6. Step 6: Final answer
    x = 19,879,298.15

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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.