Finding the Fourth Proportional to 1,240,577,009.48, 1,711,996,628.85 and 676,062,049.49
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Solution
The fourth proportional to 1,240,577,009.48, 1,711,996,628.85 and 676,062,049.49 is: 932,965,822.17
Step by Step Solution
- Step 1: Write the proportion equation
1,240,577,009.48 : 1,711,996,628.85 = 676,062,049.49 : x - Step 2: Convert to fraction form
1,240,577,009.48/1,711,996,628.85 = 676,062,049.49/x - Step 3: Cross multiply
1,240,577,009.48x = 1,711,996,628.85 × 676,062,049.49 - Step 4: Simplify right side
1,240,577,009.48x = 1,157,415,949,611,741,952 - Step 5: Solve for x
x = 1,157,415,949,611,741,952/1,240,577,009.48 - Step 6: Final answer
x = 932,965,822.17
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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.