Finding the Fourth Proportional to 117,504,430.40, 176,256,645.60 and 115,115,643.20
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Solution
The fourth proportional to 117,504,430.40, 176,256,645.60 and 115,115,643.20 is: 172,673,464.80
Step by Step Solution
- Step 1: Write the proportion equation
117,504,430.40 : 176,256,645.60 = 115,115,643.20 : x - Step 2: Convert to fraction form
117,504,430.40/176,256,645.60 = 115,115,643.20/x - Step 3: Cross multiply
117,504,430.40x = 176,256,645.60 × 115,115,643.20 - Step 4: Simplify right side
117,504,430.40x = 20,289,897,126,518,448 - Step 5: Solve for x
x = 20,289,897,126,518,448/117,504,430.40 - Step 6: Final answer
x = 172,673,464.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.