Finding the Fourth Proportional to 11,229,603.12, 15,489,718.08 and 7,362,374.88
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Solution
The fourth proportional to 11,229,603.12, 15,489,718.08 and 7,362,374.88 is: 10,155,399.98
Step by Step Solution
- Step 1: Write the proportion equation
11,229,603.12 : 15,489,718.08 = 7,362,374.88 : x - Step 2: Convert to fraction form
11,229,603.12/15,489,718.08 = 7,362,374.88/x - Step 3: Cross multiply
11,229,603.12x = 15,489,718.08 × 7,362,374.88 - Step 4: Simplify right side
11,229,603.12x = 114,041,111,290,473.83 - Step 5: Solve for x
x = 114,041,111,290,473.83/11,229,603.12 - Step 6: Final answer
x = 10,155,399.98
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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.