Finding the Fourth Proportional to 13,119,703.71, 18,111,745.76 and 8,159,743.83
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Solution
The fourth proportional to 13,119,703.71, 18,111,745.76 and 8,159,743.83 is: 11,264,523.12
Step by Step Solution
- Step 1: Write the proportion equation
13,119,703.71 : 18,111,745.76 = 8,159,743.83 : x - Step 2: Convert to fraction form
13,119,703.71/18,111,745.76 = 8,159,743.83/x - Step 3: Cross multiply
13,119,703.71x = 18,111,745.76 × 8,159,743.83 - Step 4: Simplify right side
13,119,703.71x = 147,787,205,715,688.69 - Step 5: Solve for x
x = 147,787,205,715,688.69/13,119,703.71 - Step 6: Final answer
x = 11,264,523.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.