Finding the Fourth Proportional to 13,309,872.90, 19,964,809.35 and 6,591,408.90
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Solution
The fourth proportional to 13,309,872.90, 19,964,809.35 and 6,591,408.90 is: 9,887,113.35
Step by Step Solution
- Step 1: Write the proportion equation
13,309,872.90 : 19,964,809.35 = 6,591,408.90 : x - Step 2: Convert to fraction form
13,309,872.90/19,964,809.35 = 6,591,408.90/x - Step 3: Cross multiply
13,309,872.90x = 19,964,809.35 × 6,591,408.90 - Step 4: Simplify right side
13,309,872.90x = 131,596,222,036,393.23 - Step 5: Solve for x
x = 131,596,222,036,393.23/13,309,872.90 - Step 6: Final answer
x = 9,887,113.35
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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.