Finding the Fourth Proportional to 908,102,099.62, 1,253,180,856.18 and 490,414,348
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Solution
The fourth proportional to 908,102,099.62, 1,253,180,856.18 and 490,414,348 is: 676,771,777.94
Step by Step Solution
- Step 1: Write the proportion equation
908,102,099.62 : 1,253,180,856.18 = 490,414,348 : x - Step 2: Convert to fraction form
908,102,099.62/1,253,180,856.18 = 490,414,348/x - Step 3: Cross multiply
908,102,099.62x = 1,253,180,856.18 × 490,414,348 - Step 4: Simplify right side
908,102,099.62x = 614,577,872,509,596,544 - Step 5: Solve for x
x = 614,577,872,509,596,544/908,102,099.62 - Step 6: Final answer
x = 676,771,777.94
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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.