Finding the Fourth Proportional to 171,389,907.59, 236,590,482.15 and 115,710,750.99
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Solution
The fourth proportional to 171,389,907.59, 236,590,482.15 and 115,710,750.99 is: 159,729,722.43
Step by Step Solution
- Step 1: Write the proportion equation
171,389,907.59 : 236,590,482.15 = 115,710,750.99 : x - Step 2: Convert to fraction form
171,389,907.59/236,590,482.15 = 115,710,750.99/x - Step 3: Cross multiply
171,389,907.59x = 236,590,482.15 × 115,710,750.99 - Step 4: Simplify right side
171,389,907.59x = 27,376,062,366,662,688 - Step 5: Solve for x
x = 27,376,062,366,662,688/171,389,907.59 - Step 6: Final answer
x = 159,729,722.43
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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.