Finding the Fourth Proportional to 91,219,865.18, 125,883,374.19 and 49,403,932.40
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Solution
The fourth proportional to 91,219,865.18, 125,883,374.19 and 49,403,932.40 is: 68,177,405.18
Step by Step Solution
- Step 1: Write the proportion equation
91,219,865.18 : 125,883,374.19 = 49,403,932.40 : x - Step 2: Convert to fraction form
91,219,865.18/125,883,374.19 = 49,403,932.40/x - Step 3: Cross multiply
91,219,865.18x = 125,883,374.19 × 49,403,932.40 - Step 4: Simplify right side
91,219,865.18x = 6,219,133,709,081,374 - Step 5: Solve for x
x = 6,219,133,709,081,374/91,219,865.18 - Step 6: Final answer
x = 68,177,405.18
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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.