Finding the Fourth Proportional to 9,968,139.20, 14,959,207.20 and 4,292,436.80
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Solution
The fourth proportional to 9,968,139.20, 14,959,207.20 and 4,292,436.80 is: 6,441,668.82
Step by Step Solution
- Step 1: Write the proportion equation
9,968,139.20 : 14,959,207.20 = 4,292,436.80 : x - Step 2: Convert to fraction form
9,968,139.20/14,959,207.20 = 4,292,436.80/x - Step 3: Cross multiply
9,968,139.20x = 14,959,207.20 × 4,292,436.80 - Step 4: Simplify right side
9,968,139.20x = 64,211,451,484,104.95 - Step 5: Solve for x
x = 64,211,451,484,104.95/9,968,139.20 - Step 6: Final answer
x = 6,441,668.82
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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.