Finding the Fourth Proportional to 311,878,482.40, 467,313,838.80 and 196,656,824.80
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Solution
The fourth proportional to 311,878,482.40, 467,313,838.80 and 196,656,824.80 is: 294,667,509.65
Step by Step Solution
- Step 1: Write the proportion equation
311,878,482.40 : 467,313,838.80 = 196,656,824.80 : x - Step 2: Convert to fraction form
311,878,482.40/467,313,838.80 = 196,656,824.80/x - Step 3: Cross multiply
311,878,482.40x = 467,313,838.80 × 196,656,824.80 - Step 4: Simplify right side
311,878,482.40x = 91,900,455,723,507,056 - Step 5: Solve for x
x = 91,900,455,723,507,056/311,878,482.40 - Step 6: Final answer
x = 294,667,509.65
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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.