Finding the Fourth Proportional to 1,863,715,138.92, 2,571,980,724.24 and 1,028,393,502.12
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Solution
The fourth proportional to 1,863,715,138.92, 2,571,980,724.24 and 1,028,393,502.12 is: 1,419,212,737.59
Step by Step Solution
- Step 1: Write the proportion equation
1,863,715,138.92 : 2,571,980,724.24 = 1,028,393,502.12 : x - Step 2: Convert to fraction form
1,863,715,138.92/2,571,980,724.24 = 1,028,393,502.12/x - Step 3: Cross multiply
1,863,715,138.92x = 2,571,980,724.24 × 1,028,393,502.12 - Step 4: Simplify right side
1,863,715,138.92x = 2,645,008,264,386,307,584 - Step 5: Solve for x
x = 2,645,008,264,386,307,584/1,863,715,138.92 - Step 6: Final answer
x = 1,419,212,737.59
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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.