Finding the Fourth Proportional to 77,278,489.60, 115,917,734.40 and 41,446,681.60
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Solution
The fourth proportional to 77,278,489.60, 115,917,734.40 and 41,446,681.60 is: 62,170,022.40
Step by Step Solution
- Step 1: Write the proportion equation
77,278,489.60 : 115,917,734.40 = 41,446,681.60 : x - Step 2: Convert to fraction form
77,278,489.60/115,917,734.40 = 41,446,681.60/x - Step 3: Cross multiply
77,278,489.60x = 115,917,734.40 × 41,446,681.60 - Step 4: Simplify right side
77,278,489.60x = 4,804,405,429,470,167 - Step 5: Solve for x
x = 4,804,405,429,470,167/77,278,489.60 - Step 6: Final answer
x = 62,170,022.40
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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.