Finding the Fourth Proportional to 121,396,156.18, 167,526,577.15 and 65,641,443.09
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Solution
The fourth proportional to 121,396,156.18, 167,526,577.15 and 65,641,443.09 is: 90,585,127.45
Step by Step Solution
- Step 1: Write the proportion equation
121,396,156.18 : 167,526,577.15 = 65,641,443.09 : x - Step 2: Convert to fraction form
121,396,156.18/167,526,577.15 = 65,641,443.09/x - Step 3: Cross multiply
121,396,156.18x = 167,526,577.15 × 65,641,443.09 - Step 4: Simplify right side
121,396,156.18x = 10,996,686,279,261,892 - Step 5: Solve for x
x = 10,996,686,279,261,892/121,396,156.18 - Step 6: Final answer
x = 90,585,127.45
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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.