Home / 782,289,865.22-1,079,620,059.92-447,867,280.67

Finding the Fourth Proportional to 782,289,865.22, 1,079,620,059.92 and 447,867,280.67

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Solution

The fourth proportional to 782,289,865.22, 1,079,620,059.92 and 447,867,280.67 is: 618,091,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,289,865.22 : 1,079,620,059.92 = 447,867,280.67 : x
  2. Step 2: Convert to fraction form
    782,289,865.22/1,079,620,059.92 = 447,867,280.67/x
  3. Step 3: Cross multiply
    782,289,865.22x = 1,079,620,059.92 × 447,867,280.67
  4. Step 4: Simplify right side
    782,289,865.22x = 483,526,500,385,515,456
  5. Step 5: Solve for x
    x = 483,526,500,385,515,456/782,289,865.22
  6. Step 6: Final answer
    x = 618,091,224.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.