Finding the Fourth Proportional to 64,272,651.49, 96,396,423.55 and 20,541,679.45
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Solution
The fourth proportional to 64,272,651.49, 96,396,423.55 and 20,541,679.45 is: 30,808,506.99
Step by Step Solution
- Step 1: Write the proportion equation
64,272,651.49 : 96,396,423.55 = 20,541,679.45 : x - Step 2: Convert to fraction form
64,272,651.49/96,396,423.55 = 20,541,679.45/x - Step 3: Cross multiply
64,272,651.49x = 96,396,423.55 × 20,541,679.45 - Step 4: Simplify right side
64,272,651.49x = 1,980,144,432,690,531 - Step 5: Solve for x
x = 1,980,144,432,690,531/64,272,651.49 - Step 6: Final answer
x = 30,808,506.99
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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.