Finding the Fourth Proportional to 91,296,666.18, 125,915,936.47 and 80,259,817.59
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Solution
The fourth proportional to 91,296,666.18, 125,915,936.47 and 80,259,817.59 is: 110,693,966.33
Step by Step Solution
- Step 1: Write the proportion equation
91,296,666.18 : 125,915,936.47 = 80,259,817.59 : x - Step 2: Convert to fraction form
91,296,666.18/125,915,936.47 = 80,259,817.59/x - Step 3: Cross multiply
91,296,666.18x = 125,915,936.47 × 80,259,817.59 - Step 4: Simplify right side
91,296,666.18x = 10,105,990,092,555,580 - Step 5: Solve for x
x = 10,105,990,092,555,580/91,296,666.18 - Step 6: Final answer
x = 110,693,966.33
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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.