Finding the Fourth Proportional to 14,289,139.20, 19,718,557.20 and 8,177,436.48
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Solution
The fourth proportional to 14,289,139.20, 19,718,557.20 and 8,177,436.48 is: 11,284,602.01
Step by Step Solution
- Step 1: Write the proportion equation
14,289,139.20 : 19,718,557.20 = 8,177,436.48 : x - Step 2: Convert to fraction form
14,289,139.20/19,718,557.20 = 8,177,436.48/x - Step 3: Cross multiply
14,289,139.20x = 19,718,557.20 × 8,177,436.48 - Step 4: Simplify right side
14,289,139.20x = 161,247,248,980,246.66 - Step 5: Solve for x
x = 161,247,248,980,246.66/14,289,139.20 - Step 6: Final answer
x = 11,284,602.01
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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.