Finding the Fourth Proportional to 940,879,685.18, 1,298,415,042 and 523,183,002.38
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Solution
The fourth proportional to 940,879,685.18, 1,298,415,042 and 523,183,002.38 is: 721,993,141.85
Step by Step Solution
- Step 1: Write the proportion equation
940,879,685.18 : 1,298,415,042 = 523,183,002.38 : x - Step 2: Convert to fraction form
940,879,685.18/1,298,415,042 = 523,183,002.38/x - Step 3: Cross multiply
940,879,685.18x = 1,298,415,042 × 523,183,002.38 - Step 4: Simplify right side
940,879,685.18x = 679,308,680,008,913,792 - Step 5: Solve for x
x = 679,308,680,008,913,792/940,879,685.18 - Step 6: Final answer
x = 721,993,141.85
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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.