Finding the Fourth Proportional to 388,462,847.10, 582,694,270.65 and 266,018,840.70
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Solution
The fourth proportional to 388,462,847.10, 582,694,270.65 and 266,018,840.70 is: 399,028,261.05
Step by Step Solution
- Step 1: Write the proportion equation
388,462,847.10 : 582,694,270.65 = 266,018,840.70 : x - Step 2: Convert to fraction form
388,462,847.10/582,694,270.65 = 266,018,840.70/x - Step 3: Cross multiply
388,462,847.10x = 582,694,270.65 × 266,018,840.70 - Step 4: Simplify right side
388,462,847.10x = 155,007,654,360,845,024 - Step 5: Solve for x
x = 155,007,654,360,845,024/388,462,847.10 - Step 6: Final answer
x = 399,028,261.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.