Finding the Fourth Proportional to 126,808,463.94, 174,992,719.65 and 74,600,861.70
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Solution
The fourth proportional to 126,808,463.94, 174,992,719.65 and 74,600,861.70 is: 102,947,447.45
Step by Step Solution
- Step 1: Write the proportion equation
126,808,463.94 : 174,992,719.65 = 74,600,861.70 : x - Step 2: Convert to fraction form
126,808,463.94/174,992,719.65 = 74,600,861.70/x - Step 3: Cross multiply
126,808,463.94x = 174,992,719.65 × 74,600,861.70 - Step 4: Simplify right side
126,808,463.94x = 13,054,607,677,116,524 - Step 5: Solve for x
x = 13,054,607,677,116,524/126,808,463.94 - Step 6: Final answer
x = 102,947,447.45
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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.