Home / 21,014,799.70-31,522,199.55-8,231,055.70

Finding the Fourth Proportional to 21,014,799.70, 31,522,199.55 and 8,231,055.70

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Solution

The fourth proportional to 21,014,799.70, 31,522,199.55 and 8,231,055.70 is: 12,346,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,799.70 : 31,522,199.55 = 8,231,055.70 : x
  2. Step 2: Convert to fraction form
    21,014,799.70/31,522,199.55 = 8,231,055.70/x
  3. Step 3: Cross multiply
    21,014,799.70x = 31,522,199.55 × 8,231,055.70
  4. Step 4: Simplify right side
    21,014,799.70x = 259,460,980,282,564.94
  5. Step 5: Solve for x
    x = 259,460,980,282,564.94/21,014,799.70
  6. Step 6: Final answer
    x = 12,346,583.55

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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.