Finding the Fourth Proportional to 207,875,832.48, 286,865,169.12 and 115,054,353.12
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Solution
The fourth proportional to 207,875,832.48, 286,865,169.12 and 115,054,353.12 is: 158,773,081.37
Step by Step Solution
- Step 1: Write the proportion equation
207,875,832.48 : 286,865,169.12 = 115,054,353.12 : x - Step 2: Convert to fraction form
207,875,832.48/286,865,169.12 = 115,054,353.12/x - Step 3: Cross multiply
207,875,832.48x = 286,865,169.12 × 115,054,353.12 - Step 4: Simplify right side
207,875,832.48x = 33,005,086,465,761,000 - Step 5: Solve for x
x = 33,005,086,465,761,000/207,875,832.48 - Step 6: Final answer
x = 158,773,081.37
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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.