Finding the Fourth Proportional to 19,929,101.10, 29,893,651.65 and 18,228,489.90
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Solution
The fourth proportional to 19,929,101.10, 29,893,651.65 and 18,228,489.90 is: 27,342,734.85
Step by Step Solution
- Step 1: Write the proportion equation
19,929,101.10 : 29,893,651.65 = 18,228,489.90 : x - Step 2: Convert to fraction form
19,929,101.10/29,893,651.65 = 18,228,489.90/x - Step 3: Cross multiply
19,929,101.10x = 29,893,651.65 × 18,228,489.90 - Step 4: Simplify right side
19,929,101.10x = 544,916,127,176,143.25 - Step 5: Solve for x
x = 544,916,127,176,143.25/19,929,101.10 - Step 6: Final answer
x = 27,342,734.85
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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.