Finding the Fourth Proportional to 1,088,693,423.80, 1,633,040,135.70 and 653,336,956.60
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Solution
The fourth proportional to 1,088,693,423.80, 1,633,040,135.70 and 653,336,956.60 is: 980,005,434.90
Step by Step Solution
- Step 1: Write the proportion equation
1,088,693,423.80 : 1,633,040,135.70 = 653,336,956.60 : x - Step 2: Convert to fraction form
1,088,693,423.80/1,633,040,135.70 = 653,336,956.60/x - Step 3: Cross multiply
1,088,693,423.80x = 1,633,040,135.70 × 653,336,956.60 - Step 4: Simplify right side
1,088,693,423.80x = 1,066,925,472,263,889,024 - Step 5: Solve for x
x = 1,066,925,472,263,889,024/1,088,693,423.80 - Step 6: Final answer
x = 980,005,434.90
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Double scale
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Similar ratio
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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.