Finding the Fourth Proportional to 7,209,499.95, 9,949,124.79 and 3,946,523.49
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Solution
The fourth proportional to 7,209,499.95, 9,949,124.79 and 3,946,523.49 is: 5,446,210.55
Step by Step Solution
- Step 1: Write the proportion equation
7,209,499.95 : 9,949,124.79 = 3,946,523.49 : x - Step 2: Convert to fraction form
7,209,499.95/9,949,124.79 = 3,946,523.49/x - Step 3: Cross multiply
7,209,499.95x = 9,949,124.79 × 3,946,523.49 - Step 4: Simplify right side
7,209,499.95x = 39,264,454,688,676.31 - Step 5: Solve for x
x = 39,264,454,688,676.31/7,209,499.95 - Step 6: Final answer
x = 5,446,210.55
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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.