Finding the Fourth Proportional to 222,076,865.70, 306,475,650.27 and 122,957,610.12
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Solution
The fourth proportional to 222,076,865.70, 306,475,650.27 and 122,957,610.12 is: 169,686,803.70
Step by Step Solution
- Step 1: Write the proportion equation
222,076,865.70 : 306,475,650.27 = 122,957,610.12 : x - Step 2: Convert to fraction form
222,076,865.70/306,475,650.27 = 122,957,610.12/x - Step 3: Cross multiply
222,076,865.70x = 306,475,650.27 × 122,957,610.12 - Step 4: Simplify right side
222,076,865.70x = 37,683,513,517,172,128 - Step 5: Solve for x
x = 37,683,513,517,172,128/222,076,865.70 - Step 6: Final answer
x = 169,686,803.70
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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.