Finding the Fourth Proportional to 206,385,246.21, 284,803,043.87 and 112,299,762.63
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Solution
The fourth proportional to 206,385,246.21, 284,803,043.87 and 112,299,762.63 is: 154,968,995.17
Step by Step Solution
- Step 1: Write the proportion equation
206,385,246.21 : 284,803,043.87 = 112,299,762.63 : x - Step 2: Convert to fraction form
206,385,246.21/284,803,043.87 = 112,299,762.63/x - Step 3: Cross multiply
206,385,246.21x = 284,803,043.87 × 112,299,762.63 - Step 4: Simplify right side
206,385,246.21x = 31,983,314,221,478,460 - Step 5: Solve for x
x = 31,983,314,221,478,460/206,385,246.21 - Step 6: Final answer
x = 154,968,995.17
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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.