Finding the Fourth Proportional to 90,960,219.60, 136,440,329.40 and 26,266,135.20
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Solution
The fourth proportional to 90,960,219.60, 136,440,329.40 and 26,266,135.20 is: 39,399,202.80
Step by Step Solution
- Step 1: Write the proportion equation
90,960,219.60 : 136,440,329.40 = 26,266,135.20 : x - Step 2: Convert to fraction form
90,960,219.60/136,440,329.40 = 26,266,135.20/x - Step 3: Cross multiply
90,960,219.60x = 136,440,329.40 × 26,266,135.20 - Step 4: Simplify right side
90,960,219.60x = 3,583,760,138,752,935 - Step 5: Solve for x
x = 3,583,760,138,752,935/90,960,219.60 - Step 6: Final answer
x = 39,399,202.80
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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.