Home / 30,898,989.20-46,354,013.40-12,949,907.60

Finding the Fourth Proportional to 30,898,989.20, 46,354,013.40 and 12,949,907.60

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Solution

The fourth proportional to 30,898,989.20, 46,354,013.40 and 12,949,907.60 is: 19,427,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898,989.20 : 46,354,013.40 = 12,949,907.60 : x
  2. Step 2: Convert to fraction form
    30,898,989.20/46,354,013.40 = 12,949,907.60/x
  3. Step 3: Cross multiply
    30,898,989.20x = 46,354,013.40 × 12,949,907.60
  4. Step 4: Simplify right side
    30,898,989.20x = 600,280,190,419,161.75
  5. Step 5: Solve for x
    x = 600,280,190,419,161.75/30,898,989.20
  6. Step 6: Final answer
    x = 19,427,178.88

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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.