Finding the Fourth Proportional to 20,232,847.84, 27,919,642.12 and 11,411,813.02
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Solution
The fourth proportional to 20,232,847.84, 27,919,642.12 and 11,411,813.02 is: 15,747,349.95
Step by Step Solution
- Step 1: Write the proportion equation
20,232,847.84 : 27,919,642.12 = 11,411,813.02 : x - Step 2: Convert to fraction form
20,232,847.84/27,919,642.12 = 11,411,813.02/x - Step 3: Cross multiply
20,232,847.84x = 27,919,642.12 × 11,411,813.02 - Step 4: Simplify right side
20,232,847.84x = 318,613,735,458,756.38 - Step 5: Solve for x
x = 318,613,735,458,756.38/20,232,847.84 - Step 6: Final answer
x = 15,747,349.95
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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.