Finding the Fourth Proportional to 908,336,021.84, 1,253,504,214.51 and 490,648,311.23
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Solution
The fourth proportional to 908,336,021.84, 1,253,504,214.51 and 490,648,311.23 is: 677,094,941.95
Step by Step Solution
- Step 1: Write the proportion equation
908,336,021.84 : 1,253,504,214.51 = 490,648,311.23 : x - Step 2: Convert to fraction form
908,336,021.84/1,253,504,214.51 = 490,648,311.23/x - Step 3: Cross multiply
908,336,021.84x = 1,253,504,214.51 × 490,648,311.23 - Step 4: Simplify right side
908,336,021.84x = 615,029,725,973,564,032 - Step 5: Solve for x
x = 615,029,725,973,564,032/908,336,021.84 - Step 6: Final answer
x = 677,094,941.95
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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.