Finding the Fourth Proportional to 265,729,313.80, 398,593,970.70 and 197,704,865.80
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Solution
The fourth proportional to 265,729,313.80, 398,593,970.70 and 197,704,865.80 is: 296,557,298.70
Step by Step Solution
- Step 1: Write the proportion equation
265,729,313.80 : 398,593,970.70 = 197,704,865.80 : x - Step 2: Convert to fraction form
265,729,313.80/398,593,970.70 = 197,704,865.80/x - Step 3: Cross multiply
265,729,313.80x = 398,593,970.70 × 197,704,865.80 - Step 4: Simplify right side
265,729,313.80x = 78,803,967,485,932,640 - Step 5: Solve for x
x = 78,803,967,485,932,640/265,729,313.80 - Step 6: Final answer
x = 296,557,298.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.