Finding the Fourth Proportional to 2,860,139.53, 3,947,021.03 and 1,553,417.09
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Solution
The fourth proportional to 2,860,139.53, 3,947,021.03 and 1,553,417.09 is: 2,143,731.05
Step by Step Solution
- Step 1: Write the proportion equation
2,860,139.53 : 3,947,021.03 = 1,553,417.09 : x - Step 2: Convert to fraction form
2,860,139.53/3,947,021.03 = 1,553,417.09/x - Step 3: Cross multiply
2,860,139.53x = 3,947,021.03 × 1,553,417.09 - Step 4: Simplify right side
2,860,139.53x = 6,131,369,922,591.40 - Step 5: Solve for x
x = 6,131,369,922,591.40/2,860,139.53 - Step 6: Final answer
x = 2,143,731.05
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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.