Home / 8,402,615.90-12,603,923.85-6,722,999.90

Finding the Fourth Proportional to 8,402,615.90, 12,603,923.85 and 6,722,999.90

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Solution

The fourth proportional to 8,402,615.90, 12,603,923.85 and 6,722,999.90 is: 10,084,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402,615.90 : 12,603,923.85 = 6,722,999.90 : x
  2. Step 2: Convert to fraction form
    8,402,615.90/12,603,923.85 = 6,722,999.90/x
  3. Step 3: Cross multiply
    8,402,615.90x = 12,603,923.85 × 6,722,999.90
  4. Step 4: Simplify right side
    8,402,615.90x = 84,736,178,783,157.62
  5. Step 5: Solve for x
    x = 84,736,178,783,157.62/8,402,615.90
  6. Step 6: Final answer
    x = 10,084,499.85

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Double scale
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Similar ratio
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1.5x scale

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.