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Finding the Fourth Proportional to 7,885,993.60, 11,812,401.60 and 6,558,889.60

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Solution

The fourth proportional to 7,885,993.60, 11,812,401.60 and 6,558,889.60 is: 9,824,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885,993.60 : 11,812,401.60 = 6,558,889.60 : x
  2. Step 2: Convert to fraction form
    7,885,993.60/11,812,401.60 = 6,558,889.60/x
  3. Step 3: Cross multiply
    7,885,993.60x = 11,812,401.60 × 6,558,889.60
  4. Step 4: Simplify right side
    7,885,993.60x = 77,476,238,005,263.36
  5. Step 5: Solve for x
    x = 77,476,238,005,263.36/7,885,993.60
  6. Step 6: Final answer
    x = 9,824,537.27

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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.