Finding the Fourth Proportional to 11,115,501.72, 15,342,276.06 and 6,289,405.08
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Solution
The fourth proportional to 11,115,501.72, 15,342,276.06 and 6,289,405.08 is: 8,681,010.67
Step by Step Solution
- Step 1: Write the proportion equation
11,115,501.72 : 15,342,276.06 = 6,289,405.08 : x - Step 2: Convert to fraction form
11,115,501.72/15,342,276.06 = 6,289,405.08/x - Step 3: Cross multiply
11,115,501.72x = 15,342,276.06 × 6,289,405.08 - Step 4: Simplify right side
11,115,501.72x = 96,493,788,990,526.39 - Step 5: Solve for x
x = 96,493,788,990,526.39/11,115,501.72 - Step 6: Final answer
x = 8,681,010.67
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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.