Finding the Fourth Proportional to 1,165,349,934.96, 1,608,163,882.84 and 636,702,544.24
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Solution
The fourth proportional to 1,165,349,934.96, 1,608,163,882.84 and 636,702,544.24 is: 878,639,115.21
Step by Step Solution
- Step 1: Write the proportion equation
1,165,349,934.96 : 1,608,163,882.84 = 636,702,544.24 : x - Step 2: Convert to fraction form
1,165,349,934.96/1,608,163,882.84 = 636,702,544.24/x - Step 3: Cross multiply
1,165,349,934.96x = 1,608,163,882.84 × 636,702,544.24 - Step 4: Simplify right side
1,165,349,934.96x = 1,023,922,035,759,105,280 - Step 5: Solve for x
x = 1,023,922,035,759,105,280/1,165,349,934.96 - Step 6: Final answer
x = 878,639,115.21
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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.