Home / 7,152,021.20-10,719,737.40-2,889,390.80

Finding the Fourth Proportional to 7,152,021.20, 10,719,737.40 and 2,889,390.80

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Solution

The fourth proportional to 7,152,021.20, 10,719,737.40 and 2,889,390.80 is: 4,330,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,021.20 : 10,719,737.40 = 2,889,390.80 : x
  2. Step 2: Convert to fraction form
    7,152,021.20/10,719,737.40 = 2,889,390.80/x
  3. Step 3: Cross multiply
    7,152,021.20x = 10,719,737.40 × 2,889,390.80
  4. Step 4: Simplify right side
    7,152,021.20x = 30,973,510,621,975.92
  5. Step 5: Solve for x
    x = 30,973,510,621,975.92/7,152,021.20
  6. Step 6: Final answer
    x = 4,330,735.29

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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.