Finding the Fourth Proportional to 38,985,652.36, 53,798,455.92 and 21,580,767.64
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Solution
The fourth proportional to 38,985,652.36, 53,798,455.92 and 21,580,767.64 is: 29,780,493.75
Step by Step Solution
- Step 1: Write the proportion equation
38,985,652.36 : 53,798,455.92 = 21,580,767.64 : x - Step 2: Convert to fraction form
38,985,652.36/53,798,455.92 = 21,580,767.64/x - Step 3: Cross multiply
38,985,652.36x = 53,798,455.92 × 21,580,767.64 - Step 4: Simplify right side
38,985,652.36x = 1,161,011,976,600,302.50 - Step 5: Solve for x
x = 1,161,011,976,600,302.50/38,985,652.36 - Step 6: Final answer
x = 29,780,493.75
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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.