Finding the Fourth Proportional to 20,948,643.01, 31,427,487.36 and 6,376,701.99
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Solution
The fourth proportional to 20,948,643.01, 31,427,487.36 and 6,376,701.99 is: 9,566,429.72
Step by Step Solution
- Step 1: Write the proportion equation
20,948,643.01 : 31,427,487.36 = 6,376,701.99 : x - Step 2: Convert to fraction form
20,948,643.01/31,427,487.36 = 6,376,701.99/x - Step 3: Cross multiply
20,948,643.01x = 31,427,487.36 × 6,376,701.99 - Step 4: Simplify right side
20,948,643.01x = 200,403,721,189,211.84 - Step 5: Solve for x
x = 200,403,721,189,211.84/20,948,643.01 - Step 6: Final answer
x = 9,566,429.72
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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.