Finding the Fourth Proportional to 77,325,976.93, 106,713,678.84 and 47,966,769.02
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Solution
The fourth proportional to 77,325,976.93, 106,713,678.84 and 47,966,769.02 is: 66,196,517.49
Step by Step Solution
- Step 1: Write the proportion equation
77,325,976.93 : 106,713,678.84 = 47,966,769.02 : x - Step 2: Convert to fraction form
77,325,976.93/106,713,678.84 = 47,966,769.02/x - Step 3: Cross multiply
77,325,976.93x = 106,713,678.84 × 47,966,769.02 - Step 4: Simplify right side
77,325,976.93x = 5,118,710,383,952,908 - Step 5: Solve for x
x = 5,118,710,383,952,908/77,325,976.93 - Step 6: Final answer
x = 66,196,517.49
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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.