Finding the Fourth Proportional to 641,202,370.41, 884,784,621.42 and 358,960,266.39
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Solution
The fourth proportional to 641,202,370.41, 884,784,621.42 and 358,960,266.39 is: 495,323,376.92
Step by Step Solution
- Step 1: Write the proportion equation
641,202,370.41 : 884,784,621.42 = 358,960,266.39 : x - Step 2: Convert to fraction form
641,202,370.41/884,784,621.42 = 358,960,266.39/x - Step 3: Cross multiply
641,202,370.41x = 884,784,621.42 × 358,960,266.39 - Step 4: Simplify right side
641,202,370.41x = 317,602,523,402,698,496 - Step 5: Solve for x
x = 317,602,523,402,698,496/641,202,370.41 - Step 6: Final answer
x = 495,323,376.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.