Finding the Fourth Proportional to 293,641,835.10, 405,236,386.37 and 168,218,271.43
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Solution
The fourth proportional to 293,641,835.10, 405,236,386.37 and 168,218,271.43 is: 232,147,317.88
Step by Step Solution
- Step 1: Write the proportion equation
293,641,835.10 : 405,236,386.37 = 168,218,271.43 : x - Step 2: Convert to fraction form
293,641,835.10/405,236,386.37 = 168,218,271.43/x - Step 3: Cross multiply
293,641,835.10x = 405,236,386.37 × 168,218,271.43 - Step 4: Simplify right side
293,641,835.10x = 68,168,164,435,701,016 - Step 5: Solve for x
x = 68,168,164,435,701,016/293,641,835.10 - Step 6: Final answer
x = 232,147,317.88
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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.