Finding the Fourth Proportional to 190,256,411.80, 285,384,617.70 and 132,860,783.80
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Solution
The fourth proportional to 190,256,411.80, 285,384,617.70 and 132,860,783.80 is: 199,291,175.70
Step by Step Solution
- Step 1: Write the proportion equation
190,256,411.80 : 285,384,617.70 = 132,860,783.80 : x - Step 2: Convert to fraction form
190,256,411.80/285,384,617.70 = 132,860,783.80/x - Step 3: Cross multiply
190,256,411.80x = 285,384,617.70 × 132,860,783.80 - Step 4: Simplify right side
190,256,411.80x = 37,916,423,992,085,352 - Step 5: Solve for x
x = 37,916,423,992,085,352/190,256,411.80 - Step 6: Final answer
x = 199,291,175.70
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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.