Finding the Fourth Proportional to 13,168,944.12, 18,173,848.74 and 7,367,379.84
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Solution
The fourth proportional to 13,168,944.12, 18,173,848.74 and 7,367,379.84 is: 10,167,379.07
Step by Step Solution
- Step 1: Write the proportion equation
13,168,944.12 : 18,173,848.74 = 7,367,379.84 : x - Step 2: Convert to fraction form
13,168,944.12/18,173,848.74 = 7,367,379.84/x - Step 3: Cross multiply
13,168,944.12x = 18,173,848.74 × 7,367,379.84 - Step 4: Simplify right side
13,168,944.12x = 133,893,646,822,285.39 - Step 5: Solve for x
x = 133,893,646,822,285.39/13,168,944.12 - Step 6: Final answer
x = 10,167,379.07
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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.