Finding the Fourth Proportional to 18,872,871, 28,273,241.40 and 15,818,413.92
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Solution
The fourth proportional to 18,872,871, 28,273,241.40 and 15,818,413.92 is: 23,697,392.69
Step by Step Solution
- Step 1: Write the proportion equation
18,872,871 : 28,273,241.40 = 15,818,413.92 : x - Step 2: Convert to fraction form
18,872,871/28,273,241.40 = 15,818,413.92/x - Step 3: Cross multiply
18,872,871x = 28,273,241.40 × 15,818,413.92 - Step 4: Simplify right side
18,872,871x = 447,237,835,325,280.25 - Step 5: Solve for x
x = 447,237,835,325,280.25/18,872,871 - Step 6: Final answer
x = 23,697,392.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.