Finding the Fourth Proportional to 20,920,566.62, 28,873,808.44 and 17,430,369.78
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Solution
The fourth proportional to 20,920,566.62, 28,873,808.44 and 17,430,369.78 is: 24,056,765.15
Step by Step Solution
- Step 1: Write the proportion equation
20,920,566.62 : 28,873,808.44 = 17,430,369.78 : x - Step 2: Convert to fraction form
20,920,566.62/28,873,808.44 = 17,430,369.78/x - Step 3: Cross multiply
20,920,566.62x = 28,873,808.44 × 17,430,369.78 - Step 4: Simplify right side
20,920,566.62x = 503,281,158,066,085 - Step 5: Solve for x
x = 503,281,158,066,085/20,920,566.62 - Step 6: Final answer
x = 24,056,765.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.