Finding the Fourth Proportional to 1,623,955,770.29, 2,240,674,850.75 and 919,107,731.05
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Solution
The fourth proportional to 1,623,955,770.29, 2,240,674,850.75 and 919,107,731.05 is: 1,268,151,273.43
Step by Step Solution
- Step 1: Write the proportion equation
1,623,955,770.29 : 2,240,674,850.75 = 919,107,731.05 : x - Step 2: Convert to fraction form
1,623,955,770.29/2,240,674,850.75 = 919,107,731.05/x - Step 3: Cross multiply
1,623,955,770.29x = 2,240,674,850.75 × 919,107,731.05 - Step 4: Simplify right side
1,623,955,770.29x = 2,059,421,578,083,432,704 - Step 5: Solve for x
x = 2,059,421,578,083,432,704/1,623,955,770.29 - Step 6: Final answer
x = 1,268,151,273.43
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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.