Home / 8,961,896.40-13,407,415.20-7,776,979.80

Finding the Fourth Proportional to 8,961,896.40, 13,407,415.20 and 7,776,979.80

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Solution

The fourth proportional to 8,961,896.40, 13,407,415.20 and 7,776,979.80 is: 11,634,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961,896.40 : 13,407,415.20 = 7,776,979.80 : x
  2. Step 2: Convert to fraction form
    8,961,896.40/13,407,415.20 = 7,776,979.80/x
  3. Step 3: Cross multiply
    8,961,896.40x = 13,407,415.20 × 7,776,979.80
  4. Step 4: Simplify right side
    8,961,896.40x = 104,269,197,180,612.95
  5. Step 5: Solve for x
    x = 104,269,197,180,612.95/8,961,896.40
  6. Step 6: Final answer
    x = 11,634,724.68

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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.