Finding the Fourth Proportional to 138,816,684.90, 208,248,437.18 and 46,678,520.56
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Solution
The fourth proportional to 138,816,684.90, 208,248,437.18 and 46,678,520.56 is: 70,025,652.63
Step by Step Solution
- Step 1: Write the proportion equation
138,816,684.90 : 208,248,437.18 = 46,678,520.56 : x - Step 2: Convert to fraction form
138,816,684.90/208,248,437.18 = 46,678,520.56/x - Step 3: Cross multiply
138,816,684.90x = 208,248,437.18 × 46,678,520.56 - Step 4: Simplify right side
138,816,684.90x = 9,720,728,956,494,500 - Step 5: Solve for x
x = 9,720,728,956,494,500/138,816,684.90 - Step 6: Final answer
x = 70,025,652.63
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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.