Finding the Fourth Proportional to 725,332,141.60, 1,087,891,924.20 and 356,768,163.44
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Solution
The fourth proportional to 725,332,141.60, 1,087,891,924.20 and 356,768,163.44 is: 535,099,965.32
Step by Step Solution
- Step 1: Write the proportion equation
725,332,141.60 : 1,087,891,924.20 = 356,768,163.44 : x - Step 2: Convert to fraction form
725,332,141.60/1,087,891,924.20 = 356,768,163.44/x - Step 3: Cross multiply
725,332,141.60x = 1,087,891,924.20 × 356,768,163.44 - Step 4: Simplify right side
725,332,141.60x = 388,125,203,818,041,728 - Step 5: Solve for x
x = 388,125,203,818,041,728/725,332,141.60 - Step 6: Final answer
x = 535,099,965.32
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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.