Finding the Fourth Proportional to 682,717,037.40, 942,149,512.80 and 369,451,251.18
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Solution
The fourth proportional to 682,717,037.40, 942,149,512.80 and 369,451,251.18 is: 509,842,727.27
Step by Step Solution
- Step 1: Write the proportion equation
682,717,037.40 : 942,149,512.80 = 369,451,251.18 : x - Step 2: Convert to fraction form
682,717,037.40/942,149,512.80 = 369,451,251.18/x - Step 3: Cross multiply
682,717,037.40x = 942,149,512.80 × 369,451,251.18 - Step 4: Simplify right side
682,717,037.40x = 348,078,316,302,587,392 - Step 5: Solve for x
x = 348,078,316,302,587,392/682,717,037.40 - Step 6: Final answer
x = 509,842,727.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.