Finding the Fourth Proportional to 217,320,779.88, 325,991,262.87 and 69,774,360.75
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Solution
The fourth proportional to 217,320,779.88, 325,991,262.87 and 69,774,360.75 is: 104,664,781.66
Step by Step Solution
- Step 1: Write the proportion equation
217,320,779.88 : 325,991,262.87 = 69,774,360.75 : x - Step 2: Convert to fraction form
217,320,779.88/325,991,262.87 = 69,774,360.75/x - Step 3: Cross multiply
217,320,779.88x = 325,991,262.87 × 69,774,360.75 - Step 4: Simplify right side
217,320,779.88x = 22,745,831,976,839,460 - Step 5: Solve for x
x = 22,745,831,976,839,460/217,320,779.88 - Step 6: Final answer
x = 104,664,781.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.