Finding the Fourth Proportional to 1,819,872,973.37, 2,511,419,229.68 and 984,497,312.81
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Solution
The fourth proportional to 1,819,872,973.37, 2,511,419,229.68 and 984,497,312.81 is: 1,358,603,330.63
Step by Step Solution
- Step 1: Write the proportion equation
1,819,872,973.37 : 2,511,419,229.68 = 984,497,312.81 : x - Step 2: Convert to fraction form
1,819,872,973.37/2,511,419,229.68 = 984,497,312.81/x - Step 3: Cross multiply
1,819,872,973.37x = 2,511,419,229.68 × 984,497,312.81 - Step 4: Simplify right side
1,819,872,973.37x = 2,472,485,482,941,840,896 - Step 5: Solve for x
x = 2,472,485,482,941,840,896/1,819,872,973.37 - Step 6: Final answer
x = 1,358,603,330.63
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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.