Finding the Fourth Proportional to 479,700,412.78, 717,473,390.16 and 282,493,743.26
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Solution
The fourth proportional to 479,700,412.78, 717,473,390.16 and 282,493,743.26 is: 422,517,342.65
Step by Step Solution
- Step 1: Write the proportion equation
479,700,412.78 : 717,473,390.16 = 282,493,743.26 : x - Step 2: Convert to fraction form
479,700,412.78/717,473,390.16 = 282,493,743.26/x - Step 3: Cross multiply
479,700,412.78x = 717,473,390.16 × 282,493,743.26 - Step 4: Simplify right side
479,700,412.78x = 202,681,743,675,740,832 - Step 5: Solve for x
x = 202,681,743,675,740,832/479,700,412.78 - Step 6: Final answer
x = 422,517,342.65
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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.