Finding the Fourth Proportional to 126,341,979.90, 189,654,687.45 and 97,715,024.70
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Solution
The fourth proportional to 126,341,979.90, 189,654,687.45 and 97,715,024.70 is: 146,682,143.84
Step by Step Solution
- Step 1: Write the proportion equation
126,341,979.90 : 189,654,687.45 = 97,715,024.70 : x - Step 2: Convert to fraction form
126,341,979.90/189,654,687.45 = 97,715,024.70/x - Step 3: Cross multiply
126,341,979.90x = 189,654,687.45 × 97,715,024.70 - Step 4: Simplify right side
126,341,979.90x = 18,532,112,468,647,528 - Step 5: Solve for x
x = 18,532,112,468,647,528/126,341,979.90 - Step 6: Final answer
x = 146,682,143.84
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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.