Finding the Fourth Proportional to 18,592,702.32, 27,803,438.28 and 17,685,709.68
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Solution
The fourth proportional to 18,592,702.32, 27,803,438.28 and 17,685,709.68 is: 26,447,125.82
Step by Step Solution
- Step 1: Write the proportion equation
18,592,702.32 : 27,803,438.28 = 17,685,709.68 : x - Step 2: Convert to fraction form
18,592,702.32/27,803,438.28 = 17,685,709.68/x - Step 3: Cross multiply
18,592,702.32x = 27,803,438.28 × 17,685,709.68 - Step 4: Simplify right side
18,592,702.32x = 491,723,537,525,878.56 - Step 5: Solve for x
x = 491,723,537,525,878.56/18,592,702.32 - Step 6: Final answer
x = 26,447,125.82
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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.