Finding the Fourth Proportional to 756,774,582.80, 1,135,161,874.20 and 348,627,894.80
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Solution
The fourth proportional to 756,774,582.80, 1,135,161,874.20 and 348,627,894.80 is: 522,941,842.20
Step by Step Solution
- Step 1: Write the proportion equation
756,774,582.80 : 1,135,161,874.20 = 348,627,894.80 : x - Step 2: Convert to fraction form
756,774,582.80/1,135,161,874.20 = 348,627,894.80/x - Step 3: Cross multiply
756,774,582.80x = 1,135,161,874.20 × 348,627,894.80 - Step 4: Simplify right side
756,774,582.80x = 395,749,094,459,568,448 - Step 5: Solve for x
x = 395,749,094,459,568,448/756,774,582.80 - Step 6: Final answer
x = 522,941,842.20
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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.