Finding the Fourth Proportional to 129,241,330.38, 178,353,036.14 and 70,504,232.49
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Solution
The fourth proportional to 129,241,330.38, 178,353,036.14 and 70,504,232.49 is: 97,295,840.95
Step by Step Solution
- Step 1: Write the proportion equation
129,241,330.38 : 178,353,036.14 = 70,504,232.49 : x - Step 2: Convert to fraction form
129,241,330.38/178,353,036.14 = 70,504,232.49/x - Step 3: Cross multiply
129,241,330.38x = 178,353,036.14 × 70,504,232.49 - Step 4: Simplify right side
129,241,330.38x = 12,574,643,924,959,410 - Step 5: Solve for x
x = 12,574,643,924,959,410/129,241,330.38 - Step 6: Final answer
x = 97,295,840.95
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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.