Finding the Fourth Proportional to 821,829,030.92, 1,233,167,370.88 and 385,174,076.21
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Solution
The fourth proportional to 821,829,030.92, 1,233,167,370.88 and 385,174,076.21 is: 577,959,751.99
Step by Step Solution
- Step 1: Write the proportion equation
821,829,030.92 : 1,233,167,370.88 = 385,174,076.21 : x - Step 2: Convert to fraction form
821,829,030.92/1,233,167,370.88 = 385,174,076.21/x - Step 3: Cross multiply
821,829,030.92x = 1,233,167,370.88 × 385,174,076.21 - Step 4: Simplify right side
821,829,030.92x = 474,984,102,891,018,496 - Step 5: Solve for x
x = 474,984,102,891,018,496/821,829,030.92 - Step 6: Final answer
x = 577,959,751.99
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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.