Finding the Fourth Proportional to 186,326,772.38, 279,542,008.67 and 81,291,306.14
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Solution
The fourth proportional to 186,326,772.38, 279,542,008.67 and 81,291,306.14 is: 121,959,580.56
Step by Step Solution
- Step 1: Write the proportion equation
186,326,772.38 : 279,542,008.67 = 81,291,306.14 : x - Step 2: Convert to fraction form
186,326,772.38/279,542,008.67 = 81,291,306.14/x - Step 3: Cross multiply
186,326,772.38x = 279,542,008.67 × 81,291,306.14 - Step 4: Simplify right side
186,326,772.38x = 22,724,335,005,783,504 - Step 5: Solve for x
x = 22,724,335,005,783,504/186,326,772.38 - Step 6: Final answer
x = 121,959,580.56
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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.