Finding the Fourth Proportional to 77,986,203.57, 107,624,323.08 and 43,178,893.02
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Solution
The fourth proportional to 77,986,203.57, 107,624,323.08 and 43,178,893.02 is: 59,588,733.90
Step by Step Solution
- Step 1: Write the proportion equation
77,986,203.57 : 107,624,323.08 = 43,178,893.02 : x - Step 2: Convert to fraction form
77,986,203.57/107,624,323.08 = 43,178,893.02/x - Step 3: Cross multiply
77,986,203.57x = 107,624,323.08 × 43,178,893.02 - Step 4: Simplify right side
77,986,203.57x = 4,647,099,132,621,237 - Step 5: Solve for x
x = 4,647,099,132,621,237/77,986,203.57 - Step 6: Final answer
x = 59,588,733.90
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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.