Finding the Fourth Proportional to 329,177,471.37, 493,875,970.14 and 218,947,703.54
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Solution
The fourth proportional to 329,177,471.37, 493,875,970.14 and 218,947,703.54 is: 328,494,562.65
Step by Step Solution
- Step 1: Write the proportion equation
329,177,471.37 : 493,875,970.14 = 218,947,703.54 : x - Step 2: Convert to fraction form
329,177,471.37/493,875,970.14 = 218,947,703.54/x - Step 3: Cross multiply
329,177,471.37x = 493,875,970.14 × 218,947,703.54 - Step 4: Simplify right side
329,177,471.37x = 108,133,009,493,273,232 - Step 5: Solve for x
x = 108,133,009,493,273,232/329,177,471.37 - Step 6: Final answer
x = 328,494,562.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.