Finding the Fourth Proportional to 388,558,221.08, 582,773,490.35 and 139,511,923.02
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Solution
The fourth proportional to 388,558,221.08, 582,773,490.35 and 139,511,923.02 is: 209,244,962.31
Step by Step Solution
- Step 1: Write the proportion equation
388,558,221.08 : 582,773,490.35 = 139,511,923.02 : x - Step 2: Convert to fraction form
388,558,221.08/582,773,490.35 = 139,511,923.02/x - Step 3: Cross multiply
388,558,221.08x = 582,773,490.35 × 139,511,923.02 - Step 4: Simplify right side
388,558,221.08x = 81,303,850,323,631,536 - Step 5: Solve for x
x = 81,303,850,323,631,536/388,558,221.08 - Step 6: Final answer
x = 209,244,962.31
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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.