Finding the Fourth Proportional to 235,482,292.09, 324,959,828.01 and 129,634,847.11
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Solution
The fourth proportional to 235,482,292.09, 324,959,828.01 and 129,634,847.11 is: 178,892,931.81
Step by Step Solution
- Step 1: Write the proportion equation
235,482,292.09 : 324,959,828.01 = 129,634,847.11 : x - Step 2: Convert to fraction form
235,482,292.09/324,959,828.01 = 129,634,847.11/x - Step 3: Cross multiply
235,482,292.09x = 324,959,828.01 × 129,634,847.11 - Step 4: Simplify right side
235,482,292.09x = 42,126,117,619,343,448 - Step 5: Solve for x
x = 42,126,117,619,343,448/235,482,292.09 - Step 6: Final answer
x = 178,892,931.81
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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.