Finding the Fourth Proportional to 207,231,926.36, 286,005,135.84 and 117,945,580.36
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Solution
The fourth proportional to 207,231,926.36, 286,005,135.84 and 117,945,580.36 is: 162,779,173.68
Step by Step Solution
- Step 1: Write the proportion equation
207,231,926.36 : 286,005,135.84 = 117,945,580.36 : x - Step 2: Convert to fraction form
207,231,926.36/286,005,135.84 = 117,945,580.36/x - Step 3: Cross multiply
207,231,926.36x = 286,005,135.84 × 117,945,580.36 - Step 4: Simplify right side
207,231,926.36x = 33,733,041,732,589,432 - Step 5: Solve for x
x = 33,733,041,732,589,432/207,231,926.36 - Step 6: Final answer
x = 162,779,173.68
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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.