Finding the Fourth Proportional to 19,318,325.47, 28,990,774.26 and 7,958,774.09
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Solution
The fourth proportional to 19,318,325.47, 28,990,774.26 and 7,958,774.09 is: 11,943,634.74
Step by Step Solution
- Step 1: Write the proportion equation
19,318,325.47 : 28,990,774.26 = 7,958,774.09 : x - Step 2: Convert to fraction form
19,318,325.47/28,990,774.26 = 7,958,774.09/x - Step 3: Cross multiply
19,318,325.47x = 28,990,774.26 × 7,958,774.09 - Step 4: Simplify right side
19,318,325.47x = 230,731,023,102,003.88 - Step 5: Solve for x
x = 230,731,023,102,003.88/19,318,325.47 - Step 6: Final answer
x = 11,943,634.74
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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.