Finding the Fourth Proportional to 39,480,639.93, 54,483,460.79 and 22,076,991.45
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Solution
The fourth proportional to 39,480,639.93, 54,483,460.79 and 22,076,991.45 is: 30,466,347.56
Step by Step Solution
- Step 1: Write the proportion equation
39,480,639.93 : 54,483,460.79 = 22,076,991.45 : x - Step 2: Convert to fraction form
39,480,639.93/54,483,460.79 = 22,076,991.45/x - Step 3: Cross multiply
39,480,639.93x = 54,483,460.79 × 22,076,991.45 - Step 4: Simplify right side
39,480,639.93x = 1,202,830,897,916,855.25 - Step 5: Solve for x
x = 1,202,830,897,916,855.25/39,480,639.93 - Step 6: Final answer
x = 30,466,347.56
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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.