Finding the Fourth Proportional to 90,747,905.40, 136,121,858.10 and 26,045,947.80
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Solution
The fourth proportional to 90,747,905.40, 136,121,858.10 and 26,045,947.80 is: 39,068,921.70
Step by Step Solution
- Step 1: Write the proportion equation
90,747,905.40 : 136,121,858.10 = 26,045,947.80 : x - Step 2: Convert to fraction form
90,747,905.40/136,121,858.10 = 26,045,947.80/x - Step 3: Cross multiply
90,747,905.40x = 136,121,858.10 × 26,045,947.80 - Step 4: Simplify right side
90,747,905.40x = 3,545,422,810,511,607 - Step 5: Solve for x
x = 3,545,422,810,511,607/90,747,905.40 - Step 6: Final answer
x = 39,068,921.70
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1.5x scale
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.