Finding the Fourth Proportional to 13,070,556.30, 18,037,599.45 and 7,269,340.62
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Solution
The fourth proportional to 13,070,556.30, 18,037,599.45 and 7,269,340.62 is: 10,031,818.95
Step by Step Solution
- Step 1: Write the proportion equation
13,070,556.30 : 18,037,599.45 = 7,269,340.62 : x - Step 2: Convert to fraction form
13,070,556.30/18,037,599.45 = 7,269,340.62/x - Step 3: Cross multiply
13,070,556.30x = 18,037,599.45 × 7,269,340.62 - Step 4: Simplify right side
13,070,556.30x = 131,121,454,369,174.66 - Step 5: Solve for x
x = 131,121,454,369,174.66/13,070,556.30 - Step 6: Final answer
x = 10,031,818.95
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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.