Finding the Fourth Proportional to 5,012,419.88, 6,917,152.74 and 2,720,580.56
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Solution
The fourth proportional to 5,012,419.88, 6,917,152.74 and 2,720,580.56 is: 3,754,408.39
Step by Step Solution
- Step 1: Write the proportion equation
5,012,419.88 : 6,917,152.74 = 2,720,580.56 : x - Step 2: Convert to fraction form
5,012,419.88/6,917,152.74 = 2,720,580.56/x - Step 3: Cross multiply
5,012,419.88x = 6,917,152.74 × 2,720,580.56 - Step 4: Simplify right side
5,012,419.88x = 18,818,671,274,994.73 - Step 5: Solve for x
x = 18,818,671,274,994.73/5,012,419.88 - Step 6: Final answer
x = 3,754,408.39
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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.