Finding the Fourth Proportional to 778,676,321.91, 1,074,505,232.29 and 461,079,591.42
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Solution
The fourth proportional to 778,676,321.91, 1,074,505,232.29 and 461,079,591.42 is: 636,249,516.70
Step by Step Solution
- Step 1: Write the proportion equation
778,676,321.91 : 1,074,505,232.29 = 461,079,591.42 : x - Step 2: Convert to fraction form
778,676,321.91/1,074,505,232.29 = 461,079,591.42/x - Step 3: Cross multiply
778,676,321.91x = 1,074,505,232.29 × 461,079,591.42 - Step 4: Simplify right side
778,676,321.91x = 495,432,433,482,925,376 - Step 5: Solve for x
x = 495,432,433,482,925,376/778,676,321.91 - Step 6: Final answer
x = 636,249,516.70
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1.5x scale
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.