Finding the Fourth Proportional to 2,238,612,193.32, 3,358,348,691.58 and 858,319,050.84
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Solution
The fourth proportional to 2,238,612,193.32, 3,358,348,691.58 and 858,319,050.84 is: 1,287,643,598.99
Step by Step Solution
- Step 1: Write the proportion equation
2,238,612,193.32 : 3,358,348,691.58 = 858,319,050.84 : x - Step 2: Convert to fraction form
2,238,612,193.32/3,358,348,691.58 = 858,319,050.84/x - Step 3: Cross multiply
2,238,612,193.32x = 3,358,348,691.58 × 858,319,050.84 - Step 4: Simplify right side
2,238,612,193.32x = 2,882,534,661,346,701,312 - Step 5: Solve for x
x = 2,882,534,661,346,701,312/2,238,612,193.32 - Step 6: Final answer
x = 1,287,643,598.99
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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.