Finding the Fourth Proportional to 13,131,539.81, 19,698,028.17 and 5,455,960.88
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Solution
The fourth proportional to 13,131,539.81, 19,698,028.17 and 5,455,960.88 is: 8,184,239.82
Step by Step Solution
- Step 1: Write the proportion equation
13,131,539.81 : 19,698,028.17 = 5,455,960.88 : x - Step 2: Convert to fraction form
13,131,539.81/19,698,028.17 = 5,455,960.88/x - Step 3: Cross multiply
13,131,539.81x = 19,698,028.17 × 5,455,960.88 - Step 4: Simplify right side
13,131,539.81x = 107,471,670,989,708 - Step 5: Solve for x
x = 107,471,670,989,708/13,131,539.81 - Step 6: Final answer
x = 8,184,239.82
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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.