Finding the Fourth Proportional to 53,164,372.97, 79,746,559.50 and 12,774,856.97
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Solution
The fourth proportional to 53,164,372.97, 79,746,559.50 and 12,774,856.97 is: 19,162,285.47
Step by Step Solution
- Step 1: Write the proportion equation
53,164,372.97 : 79,746,559.50 = 12,774,856.97 : x - Step 2: Convert to fraction form
53,164,372.97/79,746,559.50 = 12,774,856.97/x - Step 3: Cross multiply
53,164,372.97x = 79,746,559.50 × 12,774,856.97 - Step 4: Simplify right side
53,164,372.97x = 1,018,750,891,709,366.75 - Step 5: Solve for x
x = 1,018,750,891,709,366.75/53,164,372.97 - Step 6: Final answer
x = 19,162,285.47
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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.