Finding the Fourth Proportional to 7,226,071.36, 9,971,992.64 and 3,962,909.12
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Solution
The fourth proportional to 7,226,071.36, 9,971,992.64 and 3,962,909.12 is: 5,468,822.35
Step by Step Solution
- Step 1: Write the proportion equation
7,226,071.36 : 9,971,992.64 = 3,962,909.12 : x - Step 2: Convert to fraction form
7,226,071.36/9,971,992.64 = 3,962,909.12/x - Step 3: Cross multiply
7,226,071.36x = 9,971,992.64 × 3,962,909.12 - Step 4: Simplify right side
7,226,071.36x = 39,518,100,577,628.88 - Step 5: Solve for x
x = 39,518,100,577,628.88/7,226,071.36 - Step 6: Final answer
x = 5,468,822.35
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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.