Finding the Fourth Proportional to 11,388,430.95, 15,715,992.15 and 6,161,422.38
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Solution
The fourth proportional to 11,388,430.95, 15,715,992.15 and 6,161,422.38 is: 8,502,739.86
Step by Step Solution
- Step 1: Write the proportion equation
11,388,430.95 : 15,715,992.15 = 6,161,422.38 : x - Step 2: Convert to fraction form
11,388,430.95/15,715,992.15 = 6,161,422.38/x - Step 3: Cross multiply
11,388,430.95x = 15,715,992.15 × 6,161,422.38 - Step 4: Simplify right side
11,388,430.95x = 96,832,865,756,914.31 - Step 5: Solve for x
x = 96,832,865,756,914.31/11,388,430.95 - Step 6: Final answer
x = 8,502,739.86
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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.