Finding the Fourth Proportional to 418,330,413.84, 627,572,220.44 and 172,552,970.01
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Solution
The fourth proportional to 418,330,413.84, 627,572,220.44 and 172,552,970.01 is: 258,861,050.85
Step by Step Solution
- Step 1: Write the proportion equation
418,330,413.84 : 627,572,220.44 = 172,552,970.01 : x - Step 2: Convert to fraction form
418,330,413.84/627,572,220.44 = 172,552,970.01/x - Step 3: Cross multiply
418,330,413.84x = 627,572,220.44 × 172,552,970.01 - Step 4: Simplify right side
418,330,413.84x = 108,289,450,529,858,944 - Step 5: Solve for x
x = 108,289,450,529,858,944/418,330,413.84 - Step 6: Final answer
x = 258,861,050.85
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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.