Finding the Fourth Proportional to 124,705,454.23, 172,086,585.10 and 68,947,651.09
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Solution
The fourth proportional to 124,705,454.23, 172,086,585.10 and 68,947,651.09 is: 95,143,920.53
Step by Step Solution
- Step 1: Write the proportion equation
124,705,454.23 : 172,086,585.10 = 68,947,651.09 : x - Step 2: Convert to fraction form
124,705,454.23/172,086,585.10 = 68,947,651.09/x - Step 3: Cross multiply
124,705,454.23x = 172,086,585.10 × 68,947,651.09 - Step 4: Simplify right side
124,705,454.23x = 11,864,965,826,744,392 - Step 5: Solve for x
x = 11,864,965,826,744,392/124,705,454.23 - Step 6: Final answer
x = 95,143,920.53
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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.