Finding the Fourth Proportional to 9,311,990.40, 13,972,132.80 and 4,260,700.80
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Solution
The fourth proportional to 9,311,990.40, 13,972,132.80 and 4,260,700.80 is: 6,392,948.75
Step by Step Solution
- Step 1: Write the proportion equation
9,311,990.40 : 13,972,132.80 = 4,260,700.80 : x - Step 2: Convert to fraction form
9,311,990.40/13,972,132.80 = 4,260,700.80/x - Step 3: Cross multiply
9,311,990.40x = 13,972,132.80 × 4,260,700.80 - Step 4: Simplify right side
9,311,990.40x = 59,531,077,398,666.24 - Step 5: Solve for x
x = 59,531,077,398,666.24/9,311,990.40 - Step 6: Final answer
x = 6,392,948.75
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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.