Finding the Fourth Proportional to 13,122,029.40, 19,683,044.10 and 7,382,466.60
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Solution
The fourth proportional to 13,122,029.40, 19,683,044.10 and 7,382,466.60 is: 11,073,699.90
Step by Step Solution
- Step 1: Write the proportion equation
13,122,029.40 : 19,683,044.10 = 7,382,466.60 : x - Step 2: Convert to fraction form
13,122,029.40/19,683,044.10 = 7,382,466.60/x - Step 3: Cross multiply
13,122,029.40x = 19,683,044.10 × 7,382,466.60 - Step 4: Simplify right side
13,122,029.40x = 145,309,415,654,577.06 - Step 5: Solve for x
x = 145,309,415,654,577.06/13,122,029.40 - Step 6: Final answer
x = 11,073,699.90
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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.