Finding the Fourth Proportional to 129,589,257, 178,836,907.14 and 71,646,237.48
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Solution
The fourth proportional to 129,589,257, 178,836,907.14 and 71,646,237.48 is: 98,873,871.31
Step by Step Solution
- Step 1: Write the proportion equation
129,589,257 : 178,836,907.14 = 71,646,237.48 : x - Step 2: Convert to fraction form
129,589,257/178,836,907.14 = 71,646,237.48/x - Step 3: Cross multiply
129,589,257x = 178,836,907.14 × 71,646,237.48 - Step 4: Simplify right side
129,589,257x = 12,812,991,519,141,148 - Step 5: Solve for x
x = 12,812,991,519,141,148/129,589,257 - Step 6: Final answer
x = 98,873,871.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.