Finding the Fourth Proportional to 13,212,690.84, 19,805,645.34 and 8,953,289.64
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Solution
The fourth proportional to 13,212,690.84, 19,805,645.34 and 8,953,289.64 is: 13,420,860.40
Step by Step Solution
- Step 1: Write the proportion equation
13,212,690.84 : 19,805,645.34 = 8,953,289.64 : x - Step 2: Convert to fraction form
13,212,690.84/19,805,645.34 = 8,953,289.64/x - Step 3: Cross multiply
13,212,690.84x = 19,805,645.34 × 8,953,289.64 - Step 4: Simplify right side
13,212,690.84x = 177,325,679,236,136.28 - Step 5: Solve for x
x = 177,325,679,236,136.28/13,212,690.84 - Step 6: Final answer
x = 13,420,860.40
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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.