Finding the Fourth Proportional to 235,154,980.14, 324,515,134.38 and 129,315,220.38
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Solution
The fourth proportional to 235,154,980.14, 324,515,134.38 and 129,315,220.38 is: 178,455,698.00
Step by Step Solution
- Step 1: Write the proportion equation
235,154,980.14 : 324,515,134.38 = 129,315,220.38 : x - Step 2: Convert to fraction form
235,154,980.14/324,515,134.38 = 129,315,220.38/x - Step 3: Cross multiply
235,154,980.14x = 324,515,134.38 × 129,315,220.38 - Step 4: Simplify right side
235,154,980.14x = 41,964,746,118,995,016 - Step 5: Solve for x
x = 41,964,746,118,995,016/235,154,980.14 - Step 6: Final answer
x = 178,455,698.00
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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.