Finding the Fourth Proportional to 129,322,471.80, 194,011,701.30 and 38,455,246.20
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Solution
The fourth proportional to 129,322,471.80, 194,011,701.30 and 38,455,246.20 is: 57,691,193.46
Step by Step Solution
- Step 1: Write the proportion equation
129,322,471.80 : 194,011,701.30 = 38,455,246.20 : x - Step 2: Convert to fraction form
129,322,471.80/194,011,701.30 = 38,455,246.20/x - Step 3: Cross multiply
129,322,471.80x = 194,011,701.30 × 38,455,246.20 - Step 4: Simplify right side
129,322,471.80x = 7,460,767,739,172,361 - Step 5: Solve for x
x = 7,460,767,739,172,361/129,322,471.80 - Step 6: Final answer
x = 57,691,193.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.