Finding the Fourth Proportional to 1,999,124.42, 2,755,922.06 and 1,425,168.14
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Solution
The fourth proportional to 1,999,124.42, 2,755,922.06 and 1,425,168.14 is: 1,964,686.28
Step by Step Solution
- Step 1: Write the proportion equation
1,999,124.42 : 2,755,922.06 = 1,425,168.14 : x - Step 2: Convert to fraction form
1,999,124.42/2,755,922.06 = 1,425,168.14/x - Step 3: Cross multiply
1,999,124.42x = 2,755,922.06 × 1,425,168.14 - Step 4: Simplify right side
1,999,124.42x = 3,927,652,306,018.48 - Step 5: Solve for x
x = 3,927,652,306,018.48/1,999,124.42 - Step 6: Final answer
x = 1,964,686.28
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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.