Finding the Fourth Proportional to 76,909,448.08, 106,021,963.56 and 58,542,743.44
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Solution
The fourth proportional to 76,909,448.08, 106,021,963.56 and 58,542,743.44 is: 80,702,914.49
Step by Step Solution
- Step 1: Write the proportion equation
76,909,448.08 : 106,021,963.56 = 58,542,743.44 : x - Step 2: Convert to fraction form
76,909,448.08/106,021,963.56 = 58,542,743.44/x - Step 3: Cross multiply
76,909,448.08x = 106,021,963.56 × 58,542,743.44 - Step 4: Simplify right side
76,909,448.08x = 6,206,816,611,698,109 - Step 5: Solve for x
x = 6,206,816,611,698,109/76,909,448.08 - Step 6: Final answer
x = 80,702,914.49
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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.