Finding the Fourth Proportional to 129,290,509.58, 178,424,671.19 and 70,556,957.82
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Solution
The fourth proportional to 129,290,509.58, 178,424,671.19 and 70,556,957.82 is: 97,370,658.07
Step by Step Solution
- Step 1: Write the proportion equation
129,290,509.58 : 178,424,671.19 = 70,556,957.82 : x - Step 2: Convert to fraction form
129,290,509.58/178,424,671.19 = 70,556,957.82/x - Step 3: Cross multiply
129,290,509.58x = 178,424,671.19 × 70,556,957.82 - Step 4: Simplify right side
129,290,509.58x = 12,589,101,999,442,914 - Step 5: Solve for x
x = 12,589,101,999,442,914/129,290,509.58 - Step 6: Final answer
x = 97,370,658.07
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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.