Home / 28,608,912.85-42,887,819.64-10,400,280.67

Finding the Fourth Proportional to 28,608,912.85, 42,887,819.64 and 10,400,280.67

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Solution

The fourth proportional to 28,608,912.85, 42,887,819.64 and 10,400,280.67 is: 15,591,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,912.85 : 42,887,819.64 = 10,400,280.67 : x
  2. Step 2: Convert to fraction form
    28,608,912.85/42,887,819.64 = 10,400,280.67/x
  3. Step 3: Cross multiply
    28,608,912.85x = 42,887,819.64 × 10,400,280.67
  4. Step 4: Simplify right side
    28,608,912.85x = 446,045,361,594,947.06
  5. Step 5: Solve for x
    x = 446,045,361,594,947.06/28,608,912.85
  6. Step 6: Final answer
    x = 15,591,132.87

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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.