Finding the Fourth Proportional to 100,319,644.24, 138,441,599.42 and 56,268,997.30
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Solution
The fourth proportional to 100,319,644.24, 138,441,599.42 and 56,268,997.30 is: 77,651,491.31
Step by Step Solution
- Step 1: Write the proportion equation
100,319,644.24 : 138,441,599.42 = 56,268,997.30 : x - Step 2: Convert to fraction form
100,319,644.24/138,441,599.42 = 56,268,997.30/x - Step 3: Cross multiply
100,319,644.24x = 138,441,599.42 × 56,268,997.30 - Step 4: Simplify right side
100,319,644.24x = 7,789,969,982,998,108 - Step 5: Solve for x
x = 7,789,969,982,998,108/100,319,644.24 - Step 6: Final answer
x = 77,651,491.31
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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.