Finding the Fourth Proportional to 79,746,558.62, 119,619,837.99 and 19,162,284.62
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Solution
The fourth proportional to 79,746,558.62, 119,619,837.99 and 19,162,284.62 is: 28,743,426.94
Step by Step Solution
- Step 1: Write the proportion equation
79,746,558.62 : 119,619,837.99 = 19,162,284.62 : x - Step 2: Convert to fraction form
79,746,558.62/119,619,837.99 = 19,162,284.62/x - Step 3: Cross multiply
79,746,558.62x = 119,619,837.99 × 19,162,284.62 - Step 4: Simplify right side
79,746,558.62x = 2,292,189,381,164,569 - Step 5: Solve for x
x = 2,292,189,381,164,569/79,746,558.62 - Step 6: Final answer
x = 28,743,426.94
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Double scale
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Similar ratio
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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.