Finding the Fourth Proportional to 268,434,291.42, 370,433,513.94 and 155,408,548.92
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Solution
The fourth proportional to 268,434,291.42, 370,433,513.94 and 155,408,548.92 is: 214,460,434.87
Step by Step Solution
- Step 1: Write the proportion equation
268,434,291.42 : 370,433,513.94 = 155,408,548.92 : x - Step 2: Convert to fraction form
268,434,291.42/370,433,513.94 = 155,408,548.92/x - Step 3: Cross multiply
268,434,291.42x = 370,433,513.94 × 155,408,548.92 - Step 4: Simplify right side
268,434,291.42x = 57,568,534,872,751,984 - Step 5: Solve for x
x = 57,568,534,872,751,984/268,434,291.42 - Step 6: Final answer
x = 214,460,434.87
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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.