Finding the Fourth Proportional to 28,572,905.09, 39,433,880.09 and 16,017,350.87
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Solution
The fourth proportional to 28,572,905.09, 39,433,880.09 and 16,017,350.87 is: 22,105,777.89
Step by Step Solution
- Step 1: Write the proportion equation
28,572,905.09 : 39,433,880.09 = 16,017,350.87 : x - Step 2: Convert to fraction form
28,572,905.09/39,433,880.09 = 16,017,350.87/x - Step 3: Cross multiply
28,572,905.09x = 39,433,880.09 × 16,017,350.87 - Step 4: Simplify right side
28,572,905.09x = 631,626,293,567,037.25 - Step 5: Solve for x
x = 631,626,293,567,037.25/28,572,905.09 - Step 6: Final answer
x = 22,105,777.89
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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.