Finding the Fourth Proportional to 27,613,813.78, 38,107,050.83 and 15,853,840.53
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Solution
The fourth proportional to 27,613,813.78, 38,107,050.83 and 15,853,840.53 is: 21,878,292.94
Step by Step Solution
- Step 1: Write the proportion equation
27,613,813.78 : 38,107,050.83 = 15,853,840.53 : x - Step 2: Convert to fraction form
27,613,813.78/38,107,050.83 = 15,853,840.53/x - Step 3: Cross multiply
27,613,813.78x = 38,107,050.83 × 15,853,840.53 - Step 4: Simplify right side
27,613,813.78x = 604,143,107,028,099.25 - Step 5: Solve for x
x = 604,143,107,028,099.25/27,613,813.78 - Step 6: Final answer
x = 21,878,292.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.