Finding the Fourth Proportional to 202,682,985.12, 278,948,537.28 and 167,116,296.48
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Solution
The fourth proportional to 202,682,985.12, 278,948,537.28 and 167,116,296.48 is: 229,998,815.30
Step by Step Solution
- Step 1: Write the proportion equation
202,682,985.12 : 278,948,537.28 = 167,116,296.48 : x - Step 2: Convert to fraction form
202,682,985.12/278,948,537.28 = 167,116,296.48/x - Step 3: Cross multiply
202,682,985.12x = 278,948,537.28 × 167,116,296.48 - Step 4: Simplify right side
202,682,985.12x = 46,616,846,458,746,808 - Step 5: Solve for x
x = 46,616,846,458,746,808/202,682,985.12 - Step 6: Final answer
x = 229,998,815.30
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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.