Finding the Fourth Proportional to 13,579,143.23, 18,739,710.44 and 7,779,045.98
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Solution
The fourth proportional to 13,579,143.23, 18,739,710.44 and 7,779,045.98 is: 10,735,365.75
Step by Step Solution
- Step 1: Write the proportion equation
13,579,143.23 : 18,739,710.44 = 7,779,045.98 : x - Step 2: Convert to fraction form
13,579,143.23/18,739,710.44 = 7,779,045.98/x - Step 3: Cross multiply
13,579,143.23x = 18,739,710.44 × 7,779,045.98 - Step 4: Simplify right side
13,579,143.23x = 145,777,069,230,942.91 - Step 5: Solve for x
x = 145,777,069,230,942.91/13,579,143.23 - Step 6: Final answer
x = 10,735,365.75
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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.