Finding the Fourth Proportional to 7,718,509.94, 11,578,832.85 and 2,602,403.09
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Solution
The fourth proportional to 7,718,509.94, 11,578,832.85 and 2,602,403.09 is: 3,903,964.70
Step by Step Solution
- Step 1: Write the proportion equation
7,718,509.94 : 11,578,832.85 = 2,602,403.09 : x - Step 2: Convert to fraction form
7,718,509.94/11,578,832.85 = 2,602,403.09/x - Step 3: Cross multiply
7,718,509.94x = 11,578,832.85 × 2,602,403.09 - Step 4: Simplify right side
7,718,509.94x = 30,132,790,329,539.34 - Step 5: Solve for x
x = 30,132,790,329,539.34/7,718,509.94 - Step 6: Final answer
x = 3,903,964.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.