Finding the Fourth Proportional to 747,339,997.20, 1,121,009,995.80 and 255,889,932.46
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Solution
The fourth proportional to 747,339,997.20, 1,121,009,995.80 and 255,889,932.46 is: 383,834,898.69
Step by Step Solution
- Step 1: Write the proportion equation
747,339,997.20 : 1,121,009,995.80 = 255,889,932.46 : x - Step 2: Convert to fraction form
747,339,997.20/1,121,009,995.80 = 255,889,932.46/x - Step 3: Cross multiply
747,339,997.20x = 1,121,009,995.80 × 255,889,932.46 - Step 4: Simplify right side
747,339,997.20x = 286,855,172,112,246,880 - Step 5: Solve for x
x = 286,855,172,112,246,880/747,339,997.20 - Step 6: Final answer
x = 383,834,898.69
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1.5x scale
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.