Finding the Fourth Proportional to 13,125,967.68, 18,113,838.68 and 7,245,605.16
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Solution
The fourth proportional to 13,125,967.68, 18,113,838.68 and 7,245,605.16 is: 9,998,936.93
Step by Step Solution
- Step 1: Write the proportion equation
13,125,967.68 : 18,113,838.68 = 7,245,605.16 : x - Step 2: Convert to fraction form
13,125,967.68/18,113,838.68 = 7,245,605.16/x - Step 3: Cross multiply
13,125,967.68x = 18,113,838.68 × 7,245,605.16 - Step 4: Simplify right side
13,125,967.68x = 131,245,723,007,215.59 - Step 5: Solve for x
x = 131,245,723,007,215.59/13,125,967.68 - Step 6: Final answer
x = 9,998,936.93
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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.