Finding the Fourth Proportional to 299,642,859.31, 449,454,158.28 and 105,549,202.12
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Solution
The fourth proportional to 299,642,859.31, 449,454,158.28 and 105,549,202.12 is: 158,320,234.65
Step by Step Solution
- Step 1: Write the proportion equation
299,642,859.31 : 449,454,158.28 = 105,549,202.12 : x - Step 2: Convert to fraction form
299,642,859.31/449,454,158.28 = 105,549,202.12/x - Step 3: Cross multiply
299,642,859.31x = 449,454,158.28 × 105,549,202.12 - Step 4: Simplify right side
299,642,859.31x = 47,439,527,795,970,192 - Step 5: Solve for x
x = 47,439,527,795,970,192/299,642,859.31 - Step 6: Final answer
x = 158,320,234.65
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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.