Finding the Fourth Proportional to 122,339,775.92, 168,830,270.84 and 66,585,553.28
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Solution
The fourth proportional to 122,339,775.92, 168,830,270.84 and 66,585,553.28 is: 91,888,814.65
Step by Step Solution
- Step 1: Write the proportion equation
122,339,775.92 : 168,830,270.84 = 66,585,553.28 : x - Step 2: Convert to fraction form
122,339,775.92/168,830,270.84 = 66,585,553.28/x - Step 3: Cross multiply
122,339,775.92x = 168,830,270.84 × 66,585,553.28 - Step 4: Simplify right side
122,339,775.92x = 11,241,656,994,293,650 - Step 5: Solve for x
x = 11,241,656,994,293,650/122,339,775.92 - Step 6: Final answer
x = 91,888,814.65
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1.5x scale
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.