Finding the Fourth Proportional to 19,516,874.86, 26,933,445.84 and 10,815,193.09
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Solution
The fourth proportional to 19,516,874.86, 26,933,445.84 and 10,815,193.09 is: 14,925,054.31
Step by Step Solution
- Step 1: Write the proportion equation
19,516,874.86 : 26,933,445.84 = 10,815,193.09 : x - Step 2: Convert to fraction form
19,516,874.86/26,933,445.84 = 10,815,193.09/x - Step 3: Cross multiply
19,516,874.86x = 26,933,445.84 × 10,815,193.09 - Step 4: Simplify right side
19,516,874.86x = 291,290,417,338,657.25 - Step 5: Solve for x
x = 291,290,417,338,657.25/19,516,874.86 - Step 6: Final answer
x = 14,925,054.31
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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.