Home / 20,464,025.60-30,696,038.40-12,279,834.20

Finding the Fourth Proportional to 20,464,025.60, 30,696,038.40 and 12,279,834.20

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Solution

The fourth proportional to 20,464,025.60, 30,696,038.40 and 12,279,834.20 is: 18,419,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,025.60 : 30,696,038.40 = 12,279,834.20 : x
  2. Step 2: Convert to fraction form
    20,464,025.60/30,696,038.40 = 12,279,834.20/x
  3. Step 3: Cross multiply
    20,464,025.60x = 30,696,038.40 × 12,279,834.20
  4. Step 4: Simplify right side
    20,464,025.60x = 376,942,262,148,833.25
  5. Step 5: Solve for x
    x = 376,942,262,148,833.25/20,464,025.60
  6. Step 6: Final answer
    x = 18,419,751.30

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1.5x scale

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.