Finding the Fourth Proportional to 13,118,917.20, 19,686,670.20 and 7,727,557.20
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Solution
The fourth proportional to 13,118,917.20, 19,686,670.20 and 7,727,557.20 is: 11,596,221.53
Step by Step Solution
- Step 1: Write the proportion equation
13,118,917.20 : 19,686,670.20 = 7,727,557.20 : x - Step 2: Convert to fraction form
13,118,917.20/19,686,670.20 = 7,727,557.20/x - Step 3: Cross multiply
13,118,917.20x = 19,686,670.20 × 7,727,557.20 - Step 4: Simplify right side
13,118,917.20x = 152,129,870,048,035.44 - Step 5: Solve for x
x = 152,129,870,048,035.44/13,118,917.20 - Step 6: Final answer
x = 11,596,221.53
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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.