Finding the Fourth Proportional to 129,388,815.52, 178,557,428.64 and 70,651,888.48
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Solution
The fourth proportional to 129,388,815.52, 178,557,428.64 and 70,651,888.48 is: 97,500,077.46
Step by Step Solution
- Step 1: Write the proportion equation
129,388,815.52 : 178,557,428.64 = 70,651,888.48 : x - Step 2: Convert to fraction form
129,388,815.52/178,557,428.64 = 70,651,888.48/x - Step 3: Cross multiply
129,388,815.52x = 178,557,428.64 × 70,651,888.48 - Step 4: Simplify right side
129,388,815.52x = 12,615,419,535,548,838 - Step 5: Solve for x
x = 12,615,419,535,548,838/129,388,815.52 - Step 6: Final answer
x = 97,500,077.46
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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.