Finding the Fourth Proportional to 876,682,653.92, 1,315,193,168.36 and 286,314,180.68
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Solution
The fourth proportional to 876,682,653.92, 1,315,193,168.36 and 286,314,180.68 is: 429,526,525.65
Step by Step Solution
- Step 1: Write the proportion equation
876,682,653.92 : 1,315,193,168.36 = 286,314,180.68 : x - Step 2: Convert to fraction form
876,682,653.92/1,315,193,168.36 = 286,314,180.68/x - Step 3: Cross multiply
876,682,653.92x = 1,315,193,168.36 × 286,314,180.68 - Step 4: Simplify right side
876,682,653.92x = 376,558,454,434,926,656 - Step 5: Solve for x
x = 376,558,454,434,926,656/876,682,653.92 - Step 6: Final answer
x = 429,526,525.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.