Finding the Fourth Proportional to 398,956,379.34, 597,915,492.71 and 162,330,138.12
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Solution
The fourth proportional to 398,956,379.34, 597,915,492.71 and 162,330,138.12 is: 243,284,001.81
Step by Step Solution
- Step 1: Write the proportion equation
398,956,379.34 : 597,915,492.71 = 162,330,138.12 : x - Step 2: Convert to fraction form
398,956,379.34/597,915,492.71 = 162,330,138.12/x - Step 3: Cross multiply
398,956,379.34x = 597,915,492.71 × 162,330,138.12 - Step 4: Simplify right side
398,956,379.34x = 97,059,704,514,890,512 - Step 5: Solve for x
x = 97,059,704,514,890,512/398,956,379.34 - Step 6: Final answer
x = 243,284,001.81
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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.