Finding the Fourth Proportional to 5,420,824.59, 7,480,603.06 and 3,097,569.70
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Solution
The fourth proportional to 5,420,824.59, 7,480,603.06 and 3,097,569.70 is: 4,274,569.11
Step by Step Solution
- Step 1: Write the proportion equation
5,420,824.59 : 7,480,603.06 = 3,097,569.70 : x - Step 2: Convert to fraction form
5,420,824.59/7,480,603.06 = 3,097,569.70/x - Step 3: Cross multiply
5,420,824.59x = 7,480,603.06 × 3,097,569.70 - Step 4: Simplify right side
5,420,824.59x = 23,171,689,377,990.11 - Step 5: Solve for x
x = 23,171,689,377,990.11/5,420,824.59 - Step 6: Final answer
x = 4,274,569.11
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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.