Finding the Fourth Proportional to 129,331,588.56, 178,450,949.64 and 74,316,816.24
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Solution
The fourth proportional to 129,331,588.56, 178,450,949.64 and 74,316,816.24 is: 102,541,896.99
Step by Step Solution
- Step 1: Write the proportion equation
129,331,588.56 : 178,450,949.64 = 74,316,816.24 : x - Step 2: Convert to fraction form
129,331,588.56/178,450,949.64 = 74,316,816.24/x - Step 3: Cross multiply
129,331,588.56x = 178,450,949.64 × 74,316,816.24 - Step 4: Simplify right side
129,331,588.56x = 13,261,906,432,249,372 - Step 5: Solve for x
x = 13,261,906,432,249,372/129,331,588.56 - Step 6: Final answer
x = 102,541,896.99
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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.