Finding the Fourth Proportional to 338,742,588.36, 467,292,415.86 and 221,336,554.44
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Solution
The fourth proportional to 338,742,588.36, 467,292,415.86 and 221,336,554.44 is: 305,331,826.57
Step by Step Solution
- Step 1: Write the proportion equation
338,742,588.36 : 467,292,415.86 = 221,336,554.44 : x - Step 2: Convert to fraction form
338,742,588.36/467,292,415.86 = 221,336,554.44/x - Step 3: Cross multiply
338,742,588.36x = 467,292,415.86 × 221,336,554.44 - Step 4: Simplify right side
338,742,588.36x = 103,428,893,242,396,016 - Step 5: Solve for x
x = 103,428,893,242,396,016/338,742,588.36 - Step 6: Final answer
x = 305,331,826.57
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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.