Finding the Fourth Proportional to 19,461,149.40, 29,191,724.10 and 12,294,787.80
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Solution
The fourth proportional to 19,461,149.40, 29,191,724.10 and 12,294,787.80 is: 18,442,181.70
Step by Step Solution
- Step 1: Write the proportion equation
19,461,149.40 : 29,191,724.10 = 12,294,787.80 : x - Step 2: Convert to fraction form
19,461,149.40/29,191,724.10 = 12,294,787.80/x - Step 3: Cross multiply
19,461,149.40x = 29,191,724.10 × 12,294,787.80 - Step 4: Simplify right side
19,461,149.40x = 358,906,053,325,646 - Step 5: Solve for x
x = 358,906,053,325,646/19,461,149.40 - Step 6: Final answer
x = 18,442,181.70
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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.