Home / 2,152,564.80-3,228,847.20-1,920,321.60

Finding the Fourth Proportional to 2,152,564.80, 3,228,847.20 and 1,920,321.60

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Solution

The fourth proportional to 2,152,564.80, 3,228,847.20 and 1,920,321.60 is: 2,880,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152,564.80 : 3,228,847.20 = 1,920,321.60 : x
  2. Step 2: Convert to fraction form
    2,152,564.80/3,228,847.20 = 1,920,321.60/x
  3. Step 3: Cross multiply
    2,152,564.80x = 3,228,847.20 × 1,920,321.60
  4. Step 4: Simplify right side
    2,152,564.80x = 6,200,425,021,259.52
  5. Step 5: Solve for x
    x = 6,200,425,021,259.52/2,152,564.80
  6. Step 6: Final answer
    x = 2,880,482.40

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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.