Finding the Fourth Proportional to 230,641,661.99, 318,285,287.92 and 130,191,242.79
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Solution
The fourth proportional to 230,641,661.99, 318,285,287.92 and 130,191,242.79 is: 179,663,798.98
Step by Step Solution
- Step 1: Write the proportion equation
230,641,661.99 : 318,285,287.92 = 130,191,242.79 : x - Step 2: Convert to fraction form
230,641,661.99/318,285,287.92 = 130,191,242.79/x - Step 3: Cross multiply
230,641,661.99x = 318,285,287.92 × 130,191,242.79 - Step 4: Simplify right side
230,641,661.99x = 41,437,957,195,453,112 - Step 5: Solve for x
x = 41,437,957,195,453,112/230,641,661.99 - Step 6: Final answer
x = 179,663,798.98
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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.