Finding the Fourth Proportional to 120,390,277.02, 166,133,022.36 and 68,179,686.42
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Solution
The fourth proportional to 120,390,277.02, 166,133,022.36 and 68,179,686.42 is: 94,084,818.55
Step by Step Solution
- Step 1: Write the proportion equation
120,390,277.02 : 166,133,022.36 = 68,179,686.42 : x - Step 2: Convert to fraction form
120,390,277.02/166,133,022.36 = 68,179,686.42/x - Step 3: Cross multiply
120,390,277.02x = 166,133,022.36 × 68,179,686.42 - Step 4: Simplify right side
120,390,277.02x = 11,326,897,368,511,650 - Step 5: Solve for x
x = 11,326,897,368,511,650/120,390,277.02 - Step 6: Final answer
x = 94,084,818.55
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1.5x scale
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.