Finding the Fourth Proportional to 168,331,431.60, 252,071,994.60 and 134,319,207.60
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Solution
The fourth proportional to 168,331,431.60, 252,071,994.60 and 134,319,207.60 is: 201,139,562.89
Step by Step Solution
- Step 1: Write the proportion equation
168,331,431.60 : 252,071,994.60 = 134,319,207.60 : x - Step 2: Convert to fraction form
168,331,431.60/252,071,994.60 = 134,319,207.60/x - Step 3: Cross multiply
168,331,431.60x = 252,071,994.60 × 134,319,207.60 - Step 4: Simplify right side
168,331,431.60x = 33,858,110,572,823,476 - Step 5: Solve for x
x = 33,858,110,572,823,476/168,331,431.60 - Step 6: Final answer
x = 201,139,562.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.