Finding the Fourth Proportional to 486,075,120.67, 670,787,848.97 and 277,241,836.78
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Solution
The fourth proportional to 486,075,120.67, 670,787,848.97 and 277,241,836.78 is: 382,596,120.29
Step by Step Solution
- Step 1: Write the proportion equation
486,075,120.67 : 670,787,848.97 = 277,241,836.78 : x - Step 2: Convert to fraction form
486,075,120.67/670,787,848.97 = 277,241,836.78/x - Step 3: Cross multiply
486,075,120.67x = 670,787,848.97 × 277,241,836.78 - Step 4: Simplify right side
486,075,120.67x = 185,970,455,338,148,032 - Step 5: Solve for x
x = 185,970,455,338,148,032/486,075,120.67 - Step 6: Final answer
x = 382,596,120.29
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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.