Finding the Fourth Proportional to 171,389,907.84, 236,590,482.49 and 115,710,751.24
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Solution
The fourth proportional to 171,389,907.84, 236,590,482.49 and 115,710,751.24 is: 159,729,722.77
Step by Step Solution
- Step 1: Write the proportion equation
171,389,907.84 : 236,590,482.49 = 115,710,751.24 : x - Step 2: Convert to fraction form
171,389,907.84/236,590,482.49 = 115,710,751.24/x - Step 3: Cross multiply
171,389,907.84x = 236,590,482.49 × 115,710,751.24 - Step 4: Simplify right side
171,389,907.84x = 27,376,062,465,151,964 - Step 5: Solve for x
x = 27,376,062,465,151,964/171,389,907.84 - Step 6: Final answer
x = 159,729,722.77
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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.