Finding the Fourth Proportional to 28,588,652.96, 39,452,211.47 and 15,535,664.96
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Solution
The fourth proportional to 28,588,652.96, 39,452,211.47 and 15,535,664.96 is: 21,439,147.21
Step by Step Solution
- Step 1: Write the proportion equation
28,588,652.96 : 39,452,211.47 = 15,535,664.96 : x - Step 2: Convert to fraction form
28,588,652.96/39,452,211.47 = 15,535,664.96/x - Step 3: Cross multiply
28,588,652.96x = 39,452,211.47 × 15,535,664.96 - Step 4: Simplify right side
28,588,652.96x = 612,916,339,170,567.12 - Step 5: Solve for x
x = 612,916,339,170,567.12/28,588,652.96 - Step 6: Final answer
x = 21,439,147.21
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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.