Finding the Fourth Proportional to 39,189,197.66, 54,081,487.08 and 21,549,030.62
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Solution
The fourth proportional to 39,189,197.66, 54,081,487.08 and 21,549,030.62 is: 29,737,879.07
Step by Step Solution
- Step 1: Write the proportion equation
39,189,197.66 : 54,081,487.08 = 21,549,030.62 : x - Step 2: Convert to fraction form
39,189,197.66/54,081,487.08 = 21,549,030.62/x - Step 3: Cross multiply
39,189,197.66x = 54,081,487.08 × 21,549,030.62 - Step 4: Simplify right side
39,189,197.66x = 1,165,403,620,791,646.75 - Step 5: Solve for x
x = 1,165,403,620,791,646.75/39,189,197.66 - Step 6: Final answer
x = 29,737,879.07
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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.