Finding the Fourth Proportional to 228,860,413.81, 315,825,077.33 and 124,438,490.26
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Solution
The fourth proportional to 228,860,413.81, 315,825,077.33 and 124,438,490.26 is: 171,723,869.39
Step by Step Solution
- Step 1: Write the proportion equation
228,860,413.81 : 315,825,077.33 = 124,438,490.26 : x - Step 2: Convert to fraction form
228,860,413.81/315,825,077.33 = 124,438,490.26/x - Step 3: Cross multiply
228,860,413.81x = 315,825,077.33 × 124,438,490.26 - Step 4: Simplify right side
228,860,413.81x = 39,300,795,808,249,088 - Step 5: Solve for x
x = 39,300,795,808,249,088/228,860,413.81 - Step 6: Final answer
x = 171,723,869.39
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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.