Finding the Fourth Proportional to 163,980,492.66, 226,293,129.54 and 89,641,378.62
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Solution
The fourth proportional to 163,980,492.66, 226,293,129.54 and 89,641,378.62 is: 123,705,129.65
Step by Step Solution
- Step 1: Write the proportion equation
163,980,492.66 : 226,293,129.54 = 89,641,378.62 : x - Step 2: Convert to fraction form
163,980,492.66/226,293,129.54 = 89,641,378.62/x - Step 3: Cross multiply
163,980,492.66x = 226,293,129.54 × 89,641,378.62 - Step 4: Simplify right side
163,980,492.66x = 20,285,228,104,199,848 - Step 5: Solve for x
x = 20,285,228,104,199,848/163,980,492.66 - Step 6: Final answer
x = 123,705,129.65
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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.