Finding the Fourth Proportional to 1,151,879,718.42, 1,589,582,694.68 and 623,232,105.18
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Solution
The fourth proportional to 1,151,879,718.42, 1,589,582,694.68 and 623,232,105.18 is: 860,054,182.15
Step by Step Solution
- Step 1: Write the proportion equation
1,151,879,718.42 : 1,589,582,694.68 = 623,232,105.18 : x - Step 2: Convert to fraction form
1,151,879,718.42/1,589,582,694.68 = 623,232,105.18/x - Step 3: Cross multiply
1,151,879,718.42x = 1,589,582,694.68 × 623,232,105.18 - Step 4: Simplify right side
1,151,879,718.42x = 990,678,969,156,404,864 - Step 5: Solve for x
x = 990,678,969,156,404,864/1,151,879,718.42 - Step 6: Final answer
x = 860,054,182.15
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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.