Home / 38,702,794.82-53,409,841.39-21,299,140.01

Finding the Fourth Proportional to 38,702,794.82, 53,409,841.39 and 21,299,140.01

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Solution

The fourth proportional to 38,702,794.82, 53,409,841.39 and 21,299,140.01 is: 29,392,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,702,794.82 : 53,409,841.39 = 21,299,140.01 : x
  2. Step 2: Convert to fraction form
    38,702,794.82/53,409,841.39 = 21,299,140.01/x
  3. Step 3: Cross multiply
    38,702,794.82x = 53,409,841.39 × 21,299,140.01
  4. Step 4: Simplify right side
    38,702,794.82x = 1,137,583,689,837,651.50
  5. Step 5: Solve for x
    x = 1,137,583,689,837,651.50/38,702,794.82
  6. Step 6: Final answer
    x = 29,392,804.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.