Finding the Fourth Proportional to 78,605,734.08, 108,471,486.43 and 43,323,432.26
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Solution
The fourth proportional to 78,605,734.08, 108,471,486.43 and 43,323,432.26 is: 59,783,896.80
Step by Step Solution
- Step 1: Write the proportion equation
78,605,734.08 : 108,471,486.43 = 43,323,432.26 : x - Step 2: Convert to fraction form
78,605,734.08/108,471,486.43 = 43,323,432.26/x - Step 3: Cross multiply
78,605,734.08x = 108,471,486.43 × 43,323,432.26 - Step 4: Simplify right side
78,605,734.08x = 4,699,357,094,491,614 - Step 5: Solve for x
x = 4,699,357,094,491,614/78,605,734.08 - Step 6: Final answer
x = 59,783,896.80
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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.