Finding the Fourth Proportional to 144,293,992.48, 199,128,260.55 and 78,216,685.26
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Solution
The fourth proportional to 144,293,992.48, 199,128,260.55 and 78,216,685.26 is: 107,940,408.43
Step by Step Solution
- Step 1: Write the proportion equation
144,293,992.48 : 199,128,260.55 = 78,216,685.26 : x - Step 2: Convert to fraction form
144,293,992.48/199,128,260.55 = 78,216,685.26/x - Step 3: Cross multiply
144,293,992.48x = 199,128,260.55 × 78,216,685.26 - Step 4: Simplify right side
144,293,992.48x = 15,575,152,481,810,626 - Step 5: Solve for x
x = 15,575,152,481,810,626/144,293,992.48 - Step 6: Final answer
x = 107,940,408.43
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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.