Finding the Fourth Proportional to 10,787,899.78, 14,887,593.25 and 6,439,508.44
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Solution
The fourth proportional to 10,787,899.78, 14,887,593.25 and 6,439,508.44 is: 8,886,695.68
Step by Step Solution
- Step 1: Write the proportion equation
10,787,899.78 : 14,887,593.25 = 6,439,508.44 : x - Step 2: Convert to fraction form
10,787,899.78/14,887,593.25 = 6,439,508.44/x - Step 3: Cross multiply
10,787,899.78x = 14,887,593.25 × 6,439,508.44 - Step 4: Simplify right side
10,787,899.78x = 95,868,782,331,344.28 - Step 5: Solve for x
x = 95,868,782,331,344.28/10,787,899.78 - Step 6: Final answer
x = 8,886,695.68
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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.