Finding the Fourth Proportional to 683,585,434.80, 1,025,406,145.80 and 198,911,242.80
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Solution
The fourth proportional to 683,585,434.80, 1,025,406,145.80 and 198,911,242.80 is: 298,375,009.84
Step by Step Solution
- Step 1: Write the proportion equation
683,585,434.80 : 1,025,406,145.80 = 198,911,242.80 : x - Step 2: Convert to fraction form
683,585,434.80/1,025,406,145.80 = 198,911,242.80/x - Step 3: Cross multiply
683,585,434.80x = 1,025,406,145.80 × 198,911,242.80 - Step 4: Simplify right side
683,585,434.80x = 203,964,810,835,836,000 - Step 5: Solve for x
x = 203,964,810,835,836,000/683,585,434.80 - Step 6: Final answer
x = 298,375,009.84
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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.