Finding the Fourth Proportional to 245,181,072.48, 338,352,228.72 and 135,176,730.72
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Solution
The fourth proportional to 245,181,072.48, 338,352,228.72 and 135,176,730.72 is: 186,545,183.31
Step by Step Solution
- Step 1: Write the proportion equation
245,181,072.48 : 338,352,228.72 = 135,176,730.72 : x - Step 2: Convert to fraction form
245,181,072.48/338,352,228.72 = 135,176,730.72/x - Step 3: Cross multiply
245,181,072.48x = 338,352,228.72 × 135,176,730.72 - Step 4: Simplify right side
245,181,072.48x = 45,737,348,110,195,296 - Step 5: Solve for x
x = 45,737,348,110,195,296/245,181,072.48 - Step 6: Final answer
x = 186,545,183.31
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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.