Finding the Fourth Proportional to 147,724,503.49, 203,885,129.12 and 85,880,714.32
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Solution
The fourth proportional to 147,724,503.49, 203,885,129.12 and 85,880,714.32 is: 118,530,102.42
Step by Step Solution
- Step 1: Write the proportion equation
147,724,503.49 : 203,885,129.12 = 85,880,714.32 : x - Step 2: Convert to fraction form
147,724,503.49/203,885,129.12 = 85,880,714.32/x - Step 3: Cross multiply
147,724,503.49x = 203,885,129.12 × 85,880,714.32 - Step 4: Simplify right side
147,724,503.49x = 17,509,800,528,051,032 - Step 5: Solve for x
x = 17,509,800,528,051,032/147,724,503.49 - Step 6: Final answer
x = 118,530,102.42
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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.