Finding the Fourth Proportional to 8,908,235.28, 12,293,637.12 and 5,236,478.28
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Solution
The fourth proportional to 8,908,235.28, 12,293,637.12 and 5,236,478.28 is: 7,226,500.17
Step by Step Solution
- Step 1: Write the proportion equation
8,908,235.28 : 12,293,637.12 = 5,236,478.28 : x - Step 2: Convert to fraction form
8,908,235.28/12,293,637.12 = 5,236,478.28/x - Step 3: Cross multiply
8,908,235.28x = 12,293,637.12 × 5,236,478.28 - Step 4: Simplify right side
8,908,235.28x = 64,375,363,761,081.75 - Step 5: Solve for x
x = 64,375,363,761,081.75/8,908,235.28 - Step 6: Final answer
x = 7,226,500.17
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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.