Finding the Fourth Proportional to 178,881,335.40, 268,130,680.68 and 81,691,405.32
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Solution
The fourth proportional to 178,881,335.40, 268,130,680.68 and 81,691,405.32 is: 122,449,734.99
Step by Step Solution
- Step 1: Write the proportion equation
178,881,335.40 : 268,130,680.68 = 81,691,405.32 : x - Step 2: Convert to fraction form
178,881,335.40/268,130,680.68 = 81,691,405.32/x - Step 3: Cross multiply
178,881,335.40x = 268,130,680.68 × 81,691,405.32 - Step 4: Simplify right side
178,881,335.40x = 21,903,972,114,157,372 - Step 5: Solve for x
x = 21,903,972,114,157,372/178,881,335.40 - Step 6: Final answer
x = 122,449,734.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.