Finding the Fourth Proportional to 77,325,979.88, 106,713,682.91 and 47,966,771.97
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Solution
The fourth proportional to 77,325,979.88, 106,713,682.91 and 47,966,771.97 is: 66,196,521.56
Step by Step Solution
- Step 1: Write the proportion equation
77,325,979.88 : 106,713,682.91 = 47,966,771.97 : x - Step 2: Convert to fraction form
77,325,979.88/106,713,682.91 = 47,966,771.97/x - Step 3: Cross multiply
77,325,979.88x = 106,713,682.91 × 47,966,771.97 - Step 4: Simplify right side
77,325,979.88x = 5,118,710,894,222,856 - Step 5: Solve for x
x = 5,118,710,894,222,856/77,325,979.88 - Step 6: Final answer
x = 66,196,521.56
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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.