Finding the Fourth Proportional to 18,994,417.70, 26,209,397.34 and 10,731,465.09
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Solution
The fourth proportional to 18,994,417.70, 26,209,397.34 and 10,731,465.09 is: 14,807,783.90
Step by Step Solution
- Step 1: Write the proportion equation
18,994,417.70 : 26,209,397.34 = 10,731,465.09 : x - Step 2: Convert to fraction form
18,994,417.70/26,209,397.34 = 10,731,465.09/x - Step 3: Cross multiply
18,994,417.70x = 26,209,397.34 × 10,731,465.09 - Step 4: Simplify right side
18,994,417.70x = 281,265,232,584,148.84 - Step 5: Solve for x
x = 281,265,232,584,148.84/18,994,417.70 - Step 6: Final answer
x = 14,807,783.90
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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.