Finding the Fourth Proportional to 463,320,962.20, 639,395,413.88 and 272,595,293.02
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Solution
The fourth proportional to 463,320,962.20, 639,395,413.88 and 272,595,293.02 is: 376,188,850.55
Step by Step Solution
- Step 1: Write the proportion equation
463,320,962.20 : 639,395,413.88 = 272,595,293.02 : x - Step 2: Convert to fraction form
463,320,962.20/639,395,413.88 = 272,595,293.02/x - Step 3: Cross multiply
463,320,962.20x = 639,395,413.88 × 272,595,293.02 - Step 4: Simplify right side
463,320,962.20x = 174,296,180,202,262,752 - Step 5: Solve for x
x = 174,296,180,202,262,752/463,320,962.20 - Step 6: Final answer
x = 376,188,850.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.