Finding the Fourth Proportional to 39,026,098.24, 53,855,973.50 and 21,385,430.93
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Solution
The fourth proportional to 39,026,098.24, 53,855,973.50 and 21,385,430.93 is: 29,511,871.63
Step by Step Solution
- Step 1: Write the proportion equation
39,026,098.24 : 53,855,973.50 = 21,385,430.93 : x - Step 2: Convert to fraction form
39,026,098.24/53,855,973.50 = 21,385,430.93/x - Step 3: Cross multiply
39,026,098.24x = 53,855,973.50 × 21,385,430.93 - Step 4: Simplify right side
39,026,098.24x = 1,151,733,201,479,873.25 - Step 5: Solve for x
x = 1,151,733,201,479,873.25/39,026,098.24 - Step 6: Final answer
x = 29,511,871.63
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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.