Finding the Fourth Proportional to 11,774,861.84, 16,249,453.80 and 7,128,583.76
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Solution
The fourth proportional to 11,774,861.84, 16,249,453.80 and 7,128,583.76 is: 9,837,533.05
Step by Step Solution
- Step 1: Write the proportion equation
11,774,861.84 : 16,249,453.80 = 7,128,583.76 : x - Step 2: Convert to fraction form
11,774,861.84/16,249,453.80 = 7,128,583.76/x - Step 3: Cross multiply
11,774,861.84x = 16,249,453.80 × 7,128,583.76 - Step 4: Simplify right side
11,774,861.84x = 115,835,592,467,550.30 - Step 5: Solve for x
x = 115,835,592,467,550.30/11,774,861.84 - Step 6: Final answer
x = 9,837,533.05
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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.