Finding the Fourth Proportional to 1,491,977,465.19, 2,237,481,924.91 and 495,730,949.49
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Solution
The fourth proportional to 1,491,977,465.19, 2,237,481,924.91 and 495,730,949.49 is: 743,435,517.61
Step by Step Solution
- Step 1: Write the proportion equation
1,491,977,465.19 : 2,237,481,924.91 = 495,730,949.49 : x - Step 2: Convert to fraction form
1,491,977,465.19/2,237,481,924.91 = 495,730,949.49/x - Step 3: Cross multiply
1,491,977,465.19x = 2,237,481,924.91 × 495,730,949.49 - Step 4: Simplify right side
1,491,977,465.19x = 1,109,189,039,101,107,712 - Step 5: Solve for x
x = 1,109,189,039,101,107,712/1,491,977,465.19 - Step 6: Final answer
x = 743,435,517.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.