Finding the Fourth Proportional to 19,815,672.20, 29,695,514.70 and 14,657,851.40
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Solution
The fourth proportional to 19,815,672.20, 29,695,514.70 and 14,657,851.40 is: 21,966,069.95
Step by Step Solution
- Step 1: Write the proportion equation
19,815,672.20 : 29,695,514.70 = 14,657,851.40 : x - Step 2: Convert to fraction form
19,815,672.20/29,695,514.70 = 14,657,851.40/x - Step 3: Cross multiply
19,815,672.20x = 29,695,514.70 × 14,657,851.40 - Step 4: Simplify right side
19,815,672.20x = 435,272,441,719,115.56 - Step 5: Solve for x
x = 435,272,441,719,115.56/19,815,672.20 - Step 6: Final answer
x = 21,966,069.95
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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.