Finding the Fourth Proportional to 1,012,836,757.98, 1,397,860,927.31 and 583,591,836.81
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Solution
The fourth proportional to 1,012,836,757.98, 1,397,860,927.31 and 583,591,836.81 is: 805,440,975.31
Step by Step Solution
- Step 1: Write the proportion equation
1,012,836,757.98 : 1,397,860,927.31 = 583,591,836.81 : x - Step 2: Convert to fraction form
1,012,836,757.98/1,397,860,927.31 = 583,591,836.81/x - Step 3: Cross multiply
1,012,836,757.98x = 1,397,860,927.31 × 583,591,836.81 - Step 4: Simplify right side
1,012,836,757.98x = 815,780,226,174,610,048 - Step 5: Solve for x
x = 815,780,226,174,610,048/1,012,836,757.98 - Step 6: Final answer
x = 805,440,975.31
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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.