Finding the Fourth Proportional to 810,153,900.80, 1,215,264,028.80 and 235,725,228.80
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Solution
The fourth proportional to 810,153,900.80, 1,215,264,028.80 and 235,725,228.80 is: 353,597,496.67
Step by Step Solution
- Step 1: Write the proportion equation
810,153,900.80 : 1,215,264,028.80 = 235,725,228.80 : x - Step 2: Convert to fraction form
810,153,900.80/1,215,264,028.80 = 235,725,228.80/x - Step 3: Cross multiply
810,153,900.80x = 1,215,264,028.80 × 235,725,228.80 - Step 4: Simplify right side
810,153,900.80x = 286,468,391,241,289,792 - Step 5: Solve for x
x = 286,468,391,241,289,792/810,153,900.80 - Step 6: Final answer
x = 353,597,496.67
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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.