Finding the Fourth Proportional to 628,311,037.80, 942,466,556.70 and 197,489,533.80
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Solution
The fourth proportional to 628,311,037.80, 942,466,556.70 and 197,489,533.80 is: 296,234,300.70
Step by Step Solution
- Step 1: Write the proportion equation
628,311,037.80 : 942,466,556.70 = 197,489,533.80 : x - Step 2: Convert to fraction form
628,311,037.80/942,466,556.70 = 197,489,533.80/x - Step 3: Cross multiply
628,311,037.80x = 942,466,556.70 × 197,489,533.80 - Step 4: Simplify right side
628,311,037.80x = 186,127,280,904,774,272 - Step 5: Solve for x
x = 186,127,280,904,774,272/628,311,037.80 - Step 6: Final answer
x = 296,234,300.70
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Similar ratio
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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.