Finding the Fourth Proportional to 153,860,914.68, 212,328,113.67 and 84,250,705.38
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Solution
The fourth proportional to 153,860,914.68, 212,328,113.67 and 84,250,705.38 is: 116,266,001.58
Step by Step Solution
- Step 1: Write the proportion equation
153,860,914.68 : 212,328,113.67 = 84,250,705.38 : x - Step 2: Convert to fraction form
153,860,914.68/212,328,113.67 = 84,250,705.38/x - Step 3: Cross multiply
153,860,914.68x = 212,328,113.67 × 84,250,705.38 - Step 4: Simplify right side
153,860,914.68x = 17,888,793,348,702,318 - Step 5: Solve for x
x = 17,888,793,348,702,318/153,860,914.68 - Step 6: Final answer
x = 116,266,001.58
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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.