Finding the Fourth Proportional to 129,276,656.70, 193,914,985.05 and 129,276,656.70
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Solution
The fourth proportional to 129,276,656.70, 193,914,985.05 and 129,276,656.70 is: 193,914,985.05
Step by Step Solution
- Step 1: Write the proportion equation
129,276,656.70 : 193,914,985.05 = 129,276,656.70 : x - Step 2: Convert to fraction form
129,276,656.70/193,914,985.05 = 129,276,656.70/x - Step 3: Cross multiply
129,276,656.70x = 193,914,985.05 × 129,276,656.70 - Step 4: Simplify right side
129,276,656.70x = 25,068,680,951,294,484 - Step 5: Solve for x
x = 25,068,680,951,294,484/129,276,656.70 - Step 6: Final answer
x = 193,914,985.05
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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.