Finding the Fourth Proportional to 91,986,220.85, 137,979,331.41 and 37,386,014.09
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Solution
The fourth proportional to 91,986,220.85, 137,979,331.41 and 37,386,014.09 is: 56,079,021.19
Step by Step Solution
- Step 1: Write the proportion equation
91,986,220.85 : 137,979,331.41 = 37,386,014.09 : x - Step 2: Convert to fraction form
91,986,220.85/137,979,331.41 = 37,386,014.09/x - Step 3: Cross multiply
91,986,220.85x = 137,979,331.41 × 37,386,014.09 - Step 4: Simplify right side
91,986,220.85x = 5,158,497,228,223,040 - Step 5: Solve for x
x = 5,158,497,228,223,040/91,986,220.85 - Step 6: Final answer
x = 56,079,021.19
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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.