Finding the Fourth Proportional to 19,985,466.42, 29,976,182.12 and 13,549,863.53
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Solution
The fourth proportional to 19,985,466.42, 29,976,182.12 and 13,549,863.53 is: 20,323,427.46
Step by Step Solution
- Step 1: Write the proportion equation
19,985,466.42 : 29,976,182.12 = 13,549,863.53 : x - Step 2: Convert to fraction form
19,985,466.42/29,976,182.12 = 13,549,863.53/x - Step 3: Cross multiply
19,985,466.42x = 29,976,182.12 × 13,549,863.53 - Step 4: Simplify right side
19,985,466.42x = 406,173,176,985,241.19 - Step 5: Solve for x
x = 406,173,176,985,241.19/19,985,466.42 - Step 6: Final answer
x = 20,323,427.46
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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.