Finding the Fourth Proportional to 66,413,809.20, 99,639,376.20 and 32,336,266.80
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Solution
The fourth proportional to 66,413,809.20, 99,639,376.20 and 32,336,266.80 is: 48,513,486.75
Step by Step Solution
- Step 1: Write the proportion equation
66,413,809.20 : 99,639,376.20 = 32,336,266.80 : x - Step 2: Convert to fraction form
66,413,809.20/99,639,376.20 = 32,336,266.80/x - Step 3: Cross multiply
66,413,809.20x = 99,639,376.20 × 32,336,266.80 - Step 4: Simplify right side
66,413,809.20x = 3,221,965,452,588,770.50 - Step 5: Solve for x
x = 3,221,965,452,588,770.50/66,413,809.20 - Step 6: Final answer
x = 48,513,486.75
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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.