Finding the Fourth Proportional to 11,639,609.19, 16,063,913.52 and 6,413,142.78
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Solution
The fourth proportional to 11,639,609.19, 16,063,913.52 and 6,413,142.78 is: 8,850,827.32
Step by Step Solution
- Step 1: Write the proportion equation
11,639,609.19 : 16,063,913.52 = 6,413,142.78 : x - Step 2: Convert to fraction form
11,639,609.19/16,063,913.52 = 6,413,142.78/x - Step 3: Cross multiply
11,639,609.19x = 16,063,913.52 × 6,413,142.78 - Step 4: Simplify right side
11,639,609.19x = 103,020,171,009,332.39 - Step 5: Solve for x
x = 103,020,171,009,332.39/11,639,609.19 - Step 6: Final answer
x = 8,850,827.32
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1.5x scale
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.