Finding the Fourth Proportional to 129,483,330.28, 178,687,187.94 and 73,728,796.12
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Solution
The fourth proportional to 129,483,330.28, 178,687,187.94 and 73,728,796.12 is: 101,745,848.06
Step by Step Solution
- Step 1: Write the proportion equation
129,483,330.28 : 178,687,187.94 = 73,728,796.12 : x - Step 2: Convert to fraction form
129,483,330.28/178,687,187.94 = 73,728,796.12/x - Step 3: Cross multiply
129,483,330.28x = 178,687,187.94 × 73,728,796.12 - Step 4: Simplify right side
129,483,330.28x = 13,174,391,248,884,384 - Step 5: Solve for x
x = 13,174,391,248,884,384/129,483,330.28 - Step 6: Final answer
x = 101,745,848.06
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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.