Finding the Fourth Proportional to 7,036,642.24, 9,711,482.16 and 3,940,344.70
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Solution
The fourth proportional to 7,036,642.24, 9,711,482.16 and 3,940,344.70 is: 5,438,188.55
Step by Step Solution
- Step 1: Write the proportion equation
7,036,642.24 : 9,711,482.16 = 3,940,344.70 : x - Step 2: Convert to fraction form
7,036,642.24/9,711,482.16 = 3,940,344.70/x - Step 3: Cross multiply
7,036,642.24x = 9,711,482.16 × 3,940,344.70 - Step 4: Simplify right side
7,036,642.24x = 38,266,587,258,300.55 - Step 5: Solve for x
x = 38,266,587,258,300.55/7,036,642.24 - Step 6: Final answer
x = 5,438,188.55
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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.