Finding the Fourth Proportional to 7,339,663.60, 10,128,736.36 and 4,076,782.02
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Solution
The fourth proportional to 7,339,663.60, 10,128,736.36 and 4,076,782.02 is: 5,625,959.52
Step by Step Solution
- Step 1: Write the proportion equation
7,339,663.60 : 10,128,736.36 = 4,076,782.02 : x - Step 2: Convert to fraction form
7,339,663.60/10,128,736.36 = 4,076,782.02/x - Step 3: Cross multiply
7,339,663.60x = 10,128,736.36 × 4,076,782.02 - Step 4: Simplify right side
7,339,663.60x = 41,292,650,277,768.24 - Step 5: Solve for x
x = 41,292,650,277,768.24/7,339,663.60 - Step 6: Final answer
x = 5,625,959.52
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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.