Finding the Fourth Proportional to 660,185,201.20, 990,277,801.80 and 466,474,956.70
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Solution
The fourth proportional to 660,185,201.20, 990,277,801.80 and 466,474,956.70 is: 699,712,435.05
Step by Step Solution
- Step 1: Write the proportion equation
660,185,201.20 : 990,277,801.80 = 466,474,956.70 : x - Step 2: Convert to fraction form
660,185,201.20/990,277,801.80 = 466,474,956.70/x - Step 3: Cross multiply
660,185,201.20x = 990,277,801.80 × 466,474,956.70 - Step 4: Simplify right side
660,185,201.20x = 461,939,794,715,626,176 - Step 5: Solve for x
x = 461,939,794,715,626,176/660,185,201.20 - Step 6: Final answer
x = 699,712,435.05
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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.