Finding the Fourth Proportional to 936,955,713.99, 1,397,056,938.31 and 911,213,438.70
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Solution
The fourth proportional to 936,955,713.99, 1,397,056,938.31 and 911,213,438.70 is: 1,358,673,668.15
Step by Step Solution
- Step 1: Write the proportion equation
936,955,713.99 : 1,397,056,938.31 = 911,213,438.70 : x - Step 2: Convert to fraction form
936,955,713.99/1,397,056,938.31 = 911,213,438.70/x - Step 3: Cross multiply
936,955,713.99x = 1,397,056,938.31 × 911,213,438.70 - Step 4: Simplify right side
936,955,713.99x = 1,273,017,056,817,148,928 - Step 5: Solve for x
x = 1,273,017,056,817,148,928/936,955,713.99 - Step 6: Final answer
x = 1,358,673,668.15
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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.