Finding the Fourth Proportional to 377,274,590.58, 520,633,602.18 and 212,261,766.42
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Solution
The fourth proportional to 377,274,590.58, 520,633,602.18 and 212,261,766.42 is: 292,918,237.31
Step by Step Solution
- Step 1: Write the proportion equation
377,274,590.58 : 520,633,602.18 = 212,261,766.42 : x - Step 2: Convert to fraction form
377,274,590.58/520,633,602.18 = 212,261,766.42/x - Step 3: Cross multiply
377,274,590.58x = 520,633,602.18 × 212,261,766.42 - Step 4: Simplify right side
377,274,590.58x = 110,510,608,056,334,352 - Step 5: Solve for x
x = 110,510,608,056,334,352/377,274,590.58 - Step 6: Final answer
x = 292,918,237.31
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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.