Home / 5,251,214.40-7,861,075.20-3,120,201.60

Finding the Fourth Proportional to 5,251,214.40, 7,861,075.20 and 3,120,201.60

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Solution

The fourth proportional to 5,251,214.40, 7,861,075.20 and 3,120,201.60 is: 4,670,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251,214.40 : 7,861,075.20 = 3,120,201.60 : x
  2. Step 2: Convert to fraction form
    5,251,214.40/7,861,075.20 = 3,120,201.60/x
  3. Step 3: Cross multiply
    5,251,214.40x = 7,861,075.20 × 3,120,201.60
  4. Step 4: Simplify right side
    5,251,214.40x = 24,528,139,416,760.32
  5. Step 5: Solve for x
    x = 24,528,139,416,760.32/5,251,214.40
  6. Step 6: Final answer
    x = 4,670,946.10

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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.