Finding the Fourth Proportional to 28,474,797.84, 39,298,673.88 and 16,085,413.68
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Solution
The fourth proportional to 28,474,797.84, 39,298,673.88 and 16,085,413.68 is: 22,199,821.40
Step by Step Solution
- Step 1: Write the proportion equation
28,474,797.84 : 39,298,673.88 = 16,085,413.68 : x - Step 2: Convert to fraction form
28,474,797.84/39,298,673.88 = 16,085,413.68/x - Step 3: Cross multiply
28,474,797.84x = 39,298,673.88 × 16,085,413.68 - Step 4: Simplify right side
28,474,797.84x = 632,135,426,435,210.75 - Step 5: Solve for x
x = 632,135,426,435,210.75/28,474,797.84 - Step 6: Final answer
x = 22,199,821.40
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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.