Finding the Fourth Proportional to 246,640,307.31, 340,320,364.70 and 140,745,373.65
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Solution
The fourth proportional to 246,640,307.31, 340,320,364.70 and 140,745,373.65 is: 194,203,929.65
Step by Step Solution
- Step 1: Write the proportion equation
246,640,307.31 : 340,320,364.70 = 140,745,373.65 : x - Step 2: Convert to fraction form
246,640,307.31/340,320,364.70 = 140,745,373.65/x - Step 3: Cross multiply
246,640,307.31x = 340,320,364.70 × 140,745,373.65 - Step 4: Simplify right side
246,640,307.31x = 47,898,516,889,702,048 - Step 5: Solve for x
x = 47,898,516,889,702,048/246,640,307.31 - Step 6: Final answer
x = 194,203,929.65
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1.5x scale
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.