Finding the Fourth Proportional to 280,167,133.61, 420,505,721.36 and 149,119,429.57
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Solution
The fourth proportional to 280,167,133.61, 420,505,721.36 and 149,119,429.57 is: 223,814,879.68
Step by Step Solution
- Step 1: Write the proportion equation
280,167,133.61 : 420,505,721.36 = 149,119,429.57 : x - Step 2: Convert to fraction form
280,167,133.61/420,505,721.36 = 149,119,429.57/x - Step 3: Cross multiply
280,167,133.61x = 420,505,721.36 × 149,119,429.57 - Step 4: Simplify right side
280,167,133.61x = 62,705,573,299,378,968 - Step 5: Solve for x
x = 62,705,573,299,378,968/280,167,133.61 - Step 6: Final answer
x = 223,814,879.68
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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.