Finding the Fourth Proportional to 13,579,271.99, 18,739,888.01 and 7,779,174.65
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Solution
The fourth proportional to 13,579,271.99, 18,739,888.01 and 7,779,174.65 is: 10,735,543.25
Step by Step Solution
- Step 1: Write the proportion equation
13,579,271.99 : 18,739,888.01 = 7,779,174.65 : x - Step 2: Convert to fraction form
13,579,271.99/18,739,888.01 = 7,779,174.65/x - Step 3: Cross multiply
13,579,271.99x = 18,739,888.01 × 7,779,174.65 - Step 4: Simplify right side
13,579,271.99x = 145,780,861,751,230.97 - Step 5: Solve for x
x = 145,780,861,751,230.97/13,579,271.99 - Step 6: Final answer
x = 10,735,543.25
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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.