Finding the Fourth Proportional to 873,690,684.88, 1,310,540,926.53 and 291,423,331.96
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Solution
The fourth proportional to 873,690,684.88, 1,310,540,926.53 and 291,423,331.96 is: 437,136,632.09
Step by Step Solution
- Step 1: Write the proportion equation
873,690,684.88 : 1,310,540,926.53 = 291,423,331.96 : x - Step 2: Convert to fraction form
873,690,684.88/1,310,540,926.53 = 291,423,331.96/x - Step 3: Cross multiply
873,690,684.88x = 1,310,540,926.53 × 291,423,331.96 - Step 4: Simplify right side
873,690,684.88x = 381,922,203,479,318,144 - Step 5: Solve for x
x = 381,922,203,479,318,144/873,690,684.88 - Step 6: Final answer
x = 437,136,632.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.