Finding the Fourth Proportional to 375,670,871.99, 518,426,413.23 and 208,407,137.54
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Solution
The fourth proportional to 375,670,871.99, 518,426,413.23 and 208,407,137.54 is: 287,602,188.14
Step by Step Solution
- Step 1: Write the proportion equation
375,670,871.99 : 518,426,413.23 = 208,407,137.54 : x - Step 2: Convert to fraction form
375,670,871.99/518,426,413.23 = 208,407,137.54/x - Step 3: Cross multiply
375,670,871.99x = 518,426,413.23 × 208,407,137.54 - Step 4: Simplify right side
375,670,871.99x = 108,043,764,805,351,456 - Step 5: Solve for x
x = 108,043,764,805,351,456/375,670,871.99 - Step 6: Final answer
x = 287,602,188.14
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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.