Finding the Fourth Proportional to 91,071,253.40, 125,679,326.83 and 49,818,146.18
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Solution
The fourth proportional to 91,071,253.40, 125,679,326.83 and 49,818,146.18 is: 68,749,587.18
Step by Step Solution
- Step 1: Write the proportion equation
91,071,253.40 : 125,679,326.83 = 49,818,146.18 : x - Step 2: Convert to fraction form
91,071,253.40/125,679,326.83 = 49,818,146.18/x - Step 3: Cross multiply
91,071,253.40x = 125,679,326.83 × 49,818,146.18 - Step 4: Simplify right side
91,071,253.40x = 6,261,111,075,192,539 - Step 5: Solve for x
x = 6,261,111,075,192,539/91,071,253.40 - Step 6: Final answer
x = 68,749,587.18
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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.