Finding the Fourth Proportional to 129,331,526.96, 178,450,864.28 and 74,316,754.64
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Solution
The fourth proportional to 129,331,526.96, 178,450,864.28 and 74,316,754.64 is: 102,541,811.79
Step by Step Solution
- Step 1: Write the proportion equation
129,331,526.96 : 178,450,864.28 = 74,316,754.64 : x - Step 2: Convert to fraction form
129,331,526.96/178,450,864.28 = 74,316,754.64/x - Step 3: Cross multiply
129,331,526.96x = 178,450,864.28 × 74,316,754.64 - Step 4: Simplify right side
129,331,526.96x = 13,261,889,095,992,700 - Step 5: Solve for x
x = 13,261,889,095,992,700/129,331,526.96 - Step 6: Final answer
x = 102,541,811.79
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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.