Finding the Fourth Proportional to 13,070,691.90, 19,588,101.52 and 8,269,786.80
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Solution
The fourth proportional to 13,070,691.90, 19,588,101.52 and 8,269,786.80 is: 12,393,331.94
Step by Step Solution
- Step 1: Write the proportion equation
13,070,691.90 : 19,588,101.52 = 8,269,786.80 : x - Step 2: Convert to fraction form
13,070,691.90/19,588,101.52 = 8,269,786.80/x - Step 3: Cross multiply
13,070,691.90x = 19,588,101.52 × 8,269,786.80 - Step 4: Simplify right side
13,070,691.90x = 161,989,423,387,155.94 - Step 5: Solve for x
x = 161,989,423,387,155.94/13,070,691.90 - Step 6: Final answer
x = 12,393,331.94
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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.