Finding the Fourth Proportional to 129,988,837.56, 194,943,996.18 and 39,088,296.12
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Solution
The fourth proportional to 129,988,837.56, 194,943,996.18 and 39,088,296.12 is: 58,620,638.45
Step by Step Solution
- Step 1: Write the proportion equation
129,988,837.56 : 194,943,996.18 = 39,088,296.12 : x - Step 2: Convert to fraction form
129,988,837.56/194,943,996.18 = 39,088,296.12/x - Step 3: Cross multiply
129,988,837.56x = 194,943,996.18 × 39,088,296.12 - Step 4: Simplify right side
129,988,837.56x = 7,620,028,649,499,989 - Step 5: Solve for x
x = 7,620,028,649,499,989/129,988,837.56 - Step 6: Final answer
x = 58,620,638.45
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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.