Finding the Fourth Proportional to 936,955,515, 1,397,056,642.71 and 911,213,239.62
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Solution
The fourth proportional to 936,955,515, 1,397,056,642.71 and 911,213,239.62 is: 1,358,673,372.38
Step by Step Solution
- Step 1: Write the proportion equation
936,955,515 : 1,397,056,642.71 = 911,213,239.62 : x - Step 2: Convert to fraction form
936,955,515/1,397,056,642.71 = 911,213,239.62/x - Step 3: Cross multiply
936,955,515x = 1,397,056,642.71 × 911,213,239.62 - Step 4: Simplify right side
936,955,515x = 1,273,016,509,336,420,096 - Step 5: Solve for x
x = 1,273,016,509,336,420,096/936,955,515 - Step 6: Final answer
x = 1,358,673,372.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.