Finding the Fourth Proportional to 4,664,217.60, 6,999,436.80 and 2,138,572.80
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Solution
The fourth proportional to 4,664,217.60, 6,999,436.80 and 2,138,572.80 is: 3,209,285.34
Step by Step Solution
- Step 1: Write the proportion equation
4,664,217.60 : 6,999,436.80 = 2,138,572.80 : x - Step 2: Convert to fraction form
4,664,217.60/6,999,436.80 = 2,138,572.80/x - Step 3: Cross multiply
4,664,217.60x = 6,999,436.80 × 2,138,572.80 - Step 4: Simplify right side
4,664,217.60x = 14,968,805,155,799.04 - Step 5: Solve for x
x = 14,968,805,155,799.04/4,664,217.60 - Step 6: Final answer
x = 3,209,285.34
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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.