Finding the Fourth Proportional to 234,289,219.57, 323,312,115.87 and 128,439,014.72
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Solution
The fourth proportional to 234,289,219.57, 323,312,115.87 and 128,439,014.72 is: 177,241,998.95
Step by Step Solution
- Step 1: Write the proportion equation
234,289,219.57 : 323,312,115.87 = 128,439,014.72 : x - Step 2: Convert to fraction form
234,289,219.57/323,312,115.87 = 128,439,014.72/x - Step 3: Cross multiply
234,289,219.57x = 323,312,115.87 × 128,439,014.72 - Step 4: Simplify right side
234,289,219.57x = 41,525,889,607,764,720 - Step 5: Solve for x
x = 41,525,889,607,764,720/234,289,219.57 - Step 6: Final answer
x = 177,241,998.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.