Finding the Fourth Proportional to 405,447,531, 559,979,487.20 and 274,840,590.84
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Solution
The fourth proportional to 405,447,531, 559,979,487.20 and 274,840,590.84 is: 379,593,119.59
Step by Step Solution
- Step 1: Write the proportion equation
405,447,531 : 559,979,487.20 = 274,840,590.84 : x - Step 2: Convert to fraction form
405,447,531/559,979,487.20 = 274,840,590.84/x - Step 3: Cross multiply
405,447,531x = 559,979,487.20 × 274,840,590.84 - Step 4: Simplify right side
405,447,531x = 153,905,093,120,328,224 - Step 5: Solve for x
x = 153,905,093,120,328,224/405,447,531 - Step 6: Final answer
x = 379,593,119.59
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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.