Finding the Fourth Proportional to 49,829,037.12, 68,759,206.56 and 28,917,817.92
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Solution
The fourth proportional to 49,829,037.12, 68,759,206.56 and 28,917,817.92 is: 39,903,765.57
Step by Step Solution
- Step 1: Write the proportion equation
49,829,037.12 : 68,759,206.56 = 28,917,817.92 : x - Step 2: Convert to fraction form
49,829,037.12/68,759,206.56 = 28,917,817.92/x - Step 3: Cross multiply
49,829,037.12x = 68,759,206.56 × 28,917,817.92 - Step 4: Simplify right side
49,829,037.12x = 1,988,366,215,625,749.75 - Step 5: Solve for x
x = 1,988,366,215,625,749.75/49,829,037.12 - Step 6: Final answer
x = 39,903,765.57
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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.