Finding the Fourth Proportional to 86,938,651.37, 119,972,802.35 and 49,767,699.53
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Solution
The fourth proportional to 86,938,651.37, 119,972,802.35 and 49,767,699.53 is: 68,677,973.31
Step by Step Solution
- Step 1: Write the proportion equation
86,938,651.37 : 119,972,802.35 = 49,767,699.53 : x - Step 2: Convert to fraction form
86,938,651.37/119,972,802.35 = 49,767,699.53/x - Step 3: Cross multiply
86,938,651.37x = 119,972,802.35 × 49,767,699.53 - Step 4: Simplify right side
86,938,651.37x = 5,970,770,378,278,175 - Step 5: Solve for x
x = 5,970,770,378,278,175/86,938,651.37 - Step 6: Final answer
x = 68,677,973.31
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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.