Finding the Fourth Proportional to 91,131,945.84, 125,762,085.48 and 49,878,838.32
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Solution
The fourth proportional to 91,131,945.84, 125,762,085.48 and 49,878,838.32 is: 68,832,797.00
Step by Step Solution
- Step 1: Write the proportion equation
91,131,945.84 : 125,762,085.48 = 49,878,838.32 : x - Step 2: Convert to fraction form
91,131,945.84/125,762,085.48 = 49,878,838.32/x - Step 3: Cross multiply
91,131,945.84x = 125,762,085.48 × 49,878,838.32 - Step 4: Simplify right side
91,131,945.84x = 6,272,866,728,442,940 - Step 5: Solve for x
x = 6,272,866,728,442,940/91,131,945.84 - Step 6: Final answer
x = 68,832,797.00
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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.