Finding the Fourth Proportional to 1,365,434,021.29, 1,884,298,951.47 and 738,902,449
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Solution
The fourth proportional to 1,365,434,021.29, 1,884,298,951.47 and 738,902,449 is: 1,019,685,380.75
Step by Step Solution
- Step 1: Write the proportion equation
1,365,434,021.29 : 1,884,298,951.47 = 738,902,449 : x - Step 2: Convert to fraction form
1,365,434,021.29/1,884,298,951.47 = 738,902,449/x - Step 3: Cross multiply
1,365,434,021.29x = 1,884,298,951.47 × 738,902,449 - Step 4: Simplify right side
1,365,434,021.29x = 1,392,313,109,889,315,072 - Step 5: Solve for x
x = 1,392,313,109,889,315,072/1,365,434,021.29 - Step 6: Final answer
x = 1,019,685,380.75
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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.