Finding the Fourth Proportional to 5,251,605.20, 7,877,292.60 and 1,464,981.20
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Solution
The fourth proportional to 5,251,605.20, 7,877,292.60 and 1,464,981.20 is: 2,197,439.66
Step by Step Solution
- Step 1: Write the proportion equation
5,251,605.20 : 7,877,292.60 = 1,464,981.20 : x - Step 2: Convert to fraction form
5,251,605.20/7,877,292.60 = 1,464,981.20/x - Step 3: Cross multiply
5,251,605.20x = 7,877,292.60 × 1,464,981.20 - Step 4: Simplify right side
5,251,605.20x = 11,540,085,565,899.12 - Step 5: Solve for x
x = 11,540,085,565,899.12/5,251,605.20 - Step 6: Final answer
x = 2,197,439.66
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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.