Home / 7,780,200.40-11,670,300.60-3,953,825.20

Finding the Fourth Proportional to 7,780,200.40, 11,670,300.60 and 3,953,825.20

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Solution

The fourth proportional to 7,780,200.40, 11,670,300.60 and 3,953,825.20 is: 5,930,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780,200.40 : 11,670,300.60 = 3,953,825.20 : x
  2. Step 2: Convert to fraction form
    7,780,200.40/11,670,300.60 = 3,953,825.20/x
  3. Step 3: Cross multiply
    7,780,200.40x = 11,670,300.60 × 3,953,825.20
  4. Step 4: Simplify right side
    7,780,200.40x = 46,142,328,603,855.12
  5. Step 5: Solve for x
    x = 46,142,328,603,855.12/7,780,200.40
  6. Step 6: Final answer
    x = 5,930,737.80

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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.