Home / 20,072,029.20-30,108,043.80-6,607,107.60

Finding the Fourth Proportional to 20,072,029.20, 30,108,043.80 and 6,607,107.60

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Solution

The fourth proportional to 20,072,029.20, 30,108,043.80 and 6,607,107.60 is: 9,910,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,029.20 : 30,108,043.80 = 6,607,107.60 : x
  2. Step 2: Convert to fraction form
    20,072,029.20/30,108,043.80 = 6,607,107.60/x
  3. Step 3: Cross multiply
    20,072,029.20x = 30,108,043.80 × 6,607,107.60
  4. Step 4: Simplify right side
    20,072,029.20x = 198,927,085,012,112.88
  5. Step 5: Solve for x
    x = 198,927,085,012,112.88/20,072,029.20
  6. Step 6: Final answer
    x = 9,910,661.40

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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.