Finding the Fourth Proportional to 128,431,413, 177,235,349.94 and 76,923,189
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Solution
The fourth proportional to 128,431,413, 177,235,349.94 and 76,923,189 is: 106,154,000.82
Step by Step Solution
- Step 1: Write the proportion equation
128,431,413 : 177,235,349.94 = 76,923,189 : x - Step 2: Convert to fraction form
128,431,413/177,235,349.94 = 76,923,189/x - Step 3: Cross multiply
128,431,413x = 177,235,349.94 × 76,923,189 - Step 4: Simplify right side
128,431,413x = 13,633,508,320,915,758 - Step 5: Solve for x
x = 13,633,508,320,915,758/128,431,413 - Step 6: Final answer
x = 106,154,000.82
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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.