Finding the Fourth Proportional to 220,786,779.58, 304,687,770.87 and 121,671,083.23
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Solution
The fourth proportional to 220,786,779.58, 304,687,770.87 and 121,671,083.23 is: 167,907,205.32
Step by Step Solution
- Step 1: Write the proportion equation
220,786,779.58 : 304,687,770.87 = 121,671,083.23 : x - Step 2: Convert to fraction form
220,786,779.58/304,687,770.87 = 121,671,083.23/x - Step 3: Cross multiply
220,786,779.58x = 304,687,770.87 × 121,671,083.23 - Step 4: Simplify right side
220,786,779.58x = 37,071,691,129,413,088 - Step 5: Solve for x
x = 37,071,691,129,413,088/220,786,779.58 - Step 6: Final answer
x = 167,907,205.32
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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.