Finding the Fourth Proportional to 18,167,860.96, 25,070,804.80 and 10,427,455.60
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Solution
The fourth proportional to 18,167,860.96, 25,070,804.80 and 10,427,455.60 is: 14,389,404.70
Step by Step Solution
- Step 1: Write the proportion equation
18,167,860.96 : 25,070,804.80 = 10,427,455.60 : x - Step 2: Convert to fraction form
18,167,860.96/25,070,804.80 = 10,427,455.60/x - Step 3: Cross multiply
18,167,860.96x = 25,070,804.80 × 10,427,455.60 - Step 4: Simplify right side
18,167,860.96x = 261,424,703,908,266.88 - Step 5: Solve for x
x = 261,424,703,908,266.88/18,167,860.96 - Step 6: Final answer
x = 14,389,404.70
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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.