Finding the Fourth Proportional to 5,710,947.75, 7,881,107.90 and 3,132,634.68
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Solution
The fourth proportional to 5,710,947.75, 7,881,107.90 and 3,132,634.68 is: 4,323,035.86
Step by Step Solution
- Step 1: Write the proportion equation
5,710,947.75 : 7,881,107.90 = 3,132,634.68 : x - Step 2: Convert to fraction form
5,710,947.75/7,881,107.90 = 3,132,634.68/x - Step 3: Cross multiply
5,710,947.75x = 7,881,107.90 × 3,132,634.68 - Step 4: Simplify right side
5,710,947.75x = 24,688,631,908,698.80 - Step 5: Solve for x
x = 24,688,631,908,698.80/5,710,947.75 - Step 6: Final answer
x = 4,323,035.86
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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.