Finding the Fourth Proportional to 126,589,370.21, 189,882,988.63 and 98,946,539.21
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Solution
The fourth proportional to 126,589,370.21, 189,882,988.63 and 98,946,539.21 is: 148,418,975.06
Step by Step Solution
- Step 1: Write the proportion equation
126,589,370.21 : 189,882,988.63 = 98,946,539.21 : x - Step 2: Convert to fraction form
126,589,370.21/189,882,988.63 = 98,946,539.21/x - Step 3: Cross multiply
126,589,370.21x = 189,882,988.63 × 98,946,539.21 - Step 4: Simplify right side
126,589,370.21x = 18,788,264,579,790,276 - Step 5: Solve for x
x = 18,788,264,579,790,276/126,589,370.21 - Step 6: Final answer
x = 148,418,975.06
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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.