Finding the Fourth Proportional to 13,129,202.62, 19,728,441.69 and 7,068,415.42
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Solution
The fourth proportional to 13,129,202.62, 19,728,441.69 and 7,068,415.42 is: 10,621,271.18
Step by Step Solution
- Step 1: Write the proportion equation
13,129,202.62 : 19,728,441.69 = 7,068,415.42 : x - Step 2: Convert to fraction form
13,129,202.62/19,728,441.69 = 7,068,415.42/x - Step 3: Cross multiply
13,129,202.62x = 19,728,441.69 × 7,068,415.42 - Step 4: Simplify right side
13,129,202.62x = 139,448,821,454,166.88 - Step 5: Solve for x
x = 139,448,821,454,166.88/13,129,202.62 - Step 6: Final answer
x = 10,621,271.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.