Finding the Fourth Proportional to 34,396,663.68, 47,465,972.72 and 18,715,752.72
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Solution
The fourth proportional to 34,396,663.68, 47,465,972.72 and 18,715,752.72 is: 25,826,964.39
Step by Step Solution
- Step 1: Write the proportion equation
34,396,663.68 : 47,465,972.72 = 18,715,752.72 : x - Step 2: Convert to fraction form
34,396,663.68/47,465,972.72 = 18,715,752.72/x - Step 3: Cross multiply
34,396,663.68x = 47,465,972.72 × 18,715,752.72 - Step 4: Simplify right side
34,396,663.68x = 888,361,408,041,785.75 - Step 5: Solve for x
x = 888,361,408,041,785.75/34,396,663.68 - Step 6: Final answer
x = 25,826,964.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.