Finding the Fourth Proportional to 10,000,396.88, 13,800,548.16 and 5,416,718.26
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Solution
The fourth proportional to 10,000,396.88, 13,800,548.16 and 5,416,718.26 is: 7,475,071.45
Step by Step Solution
- Step 1: Write the proportion equation
10,000,396.88 : 13,800,548.16 = 5,416,718.26 : x - Step 2: Convert to fraction form
10,000,396.88/13,800,548.16 = 5,416,718.26/x - Step 3: Cross multiply
10,000,396.88x = 13,800,548.16 × 5,416,718.26 - Step 4: Simplify right side
10,000,396.88x = 74,753,681,216,281.41 - Step 5: Solve for x
x = 74,753,681,216,281.41/10,000,396.88 - Step 6: Final answer
x = 7,475,071.45
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1.5x scale
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.