Finding the Fourth Proportional to 112,339,719.80, 168,509,579.70 and 51,873,543.80
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Solution
The fourth proportional to 112,339,719.80, 168,509,579.70 and 51,873,543.80 is: 77,810,315.70
Step by Step Solution
- Step 1: Write the proportion equation
112,339,719.80 : 168,509,579.70 = 51,873,543.80 : x - Step 2: Convert to fraction form
112,339,719.80/168,509,579.70 = 51,873,543.80/x - Step 3: Cross multiply
112,339,719.80x = 168,509,579.70 × 51,873,543.80 - Step 4: Simplify right side
112,339,719.80x = 8,741,189,063,287,540 - Step 5: Solve for x
x = 8,741,189,063,287,540/112,339,719.80 - Step 6: Final answer
x = 77,810,315.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.