Finding the Fourth Proportional to 664,852,877.70, 997,279,316.55 and 389,353,863.30
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Solution
The fourth proportional to 664,852,877.70, 997,279,316.55 and 389,353,863.30 is: 584,030,794.95
Step by Step Solution
- Step 1: Write the proportion equation
664,852,877.70 : 997,279,316.55 = 389,353,863.30 : x - Step 2: Convert to fraction form
664,852,877.70/997,279,316.55 = 389,353,863.30/x - Step 3: Cross multiply
664,852,877.70x = 997,279,316.55 × 389,353,863.30 - Step 4: Simplify right side
664,852,877.70x = 388,294,554,687,926,144 - Step 5: Solve for x
x = 388,294,554,687,926,144/664,852,877.70 - Step 6: Final answer
x = 584,030,794.95
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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.