Finding the Fourth Proportional to 311,980,075.54, 430,980,955.27 and 249,173,713.84
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Solution
The fourth proportional to 311,980,075.54, 430,980,955.27 and 249,173,713.84 is: 344,217,896.07
Step by Step Solution
- Step 1: Write the proportion equation
311,980,075.54 : 430,980,955.27 = 249,173,713.84 : x - Step 2: Convert to fraction form
311,980,075.54/430,980,955.27 = 249,173,713.84/x - Step 3: Cross multiply
311,980,075.54x = 430,980,955.27 × 249,173,713.84 - Step 4: Simplify right side
311,980,075.54x = 107,389,125,218,936,816 - Step 5: Solve for x
x = 107,389,125,218,936,816/311,980,075.54 - Step 6: Final answer
x = 344,217,896.07
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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.