Finding the Fourth Proportional to 77,325,981.88, 106,713,685.67 and 47,966,773.97
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Solution
The fourth proportional to 77,325,981.88, 106,713,685.67 and 47,966,773.97 is: 66,196,524.32
Step by Step Solution
- Step 1: Write the proportion equation
77,325,981.88 : 106,713,685.67 = 47,966,773.97 : x - Step 2: Convert to fraction form
77,325,981.88/106,713,685.67 = 47,966,773.97/x - Step 3: Cross multiply
77,325,981.88x = 106,713,685.67 × 47,966,773.97 - Step 4: Simplify right side
77,325,981.88x = 5,118,711,240,038,518 - Step 5: Solve for x
x = 5,118,711,240,038,518/77,325,981.88 - Step 6: Final answer
x = 66,196,524.32
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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.