Finding the Fourth Proportional to 780,207,067.70, 1,170,310,601.55 and 708,781,397.30
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Solution
The fourth proportional to 780,207,067.70, 1,170,310,601.55 and 708,781,397.30 is: 1,063,172,095.95
Step by Step Solution
- Step 1: Write the proportion equation
780,207,067.70 : 1,170,310,601.55 = 708,781,397.30 : x - Step 2: Convert to fraction form
780,207,067.70/1,170,310,601.55 = 708,781,397.30/x - Step 3: Cross multiply
780,207,067.70x = 1,170,310,601.55 × 708,781,397.30 - Step 4: Simplify right side
780,207,067.70x = 829,494,383,441,612,416 - Step 5: Solve for x
x = 829,494,383,441,612,416/780,207,067.70 - Step 6: Final answer
x = 1,063,172,095.95
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1.5x scale
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.