Finding the Fourth Proportional to 38,988,973.01, 53,804,795.87 and 21,348,991.26
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Solution
The fourth proportional to 38,988,973.01, 53,804,795.87 and 21,348,991.26 is: 29,461,615.12
Step by Step Solution
- Step 1: Write the proportion equation
38,988,973.01 : 53,804,795.87 = 21,348,991.26 : x - Step 2: Convert to fraction form
38,988,973.01/53,804,795.87 = 21,348,991.26/x - Step 3: Cross multiply
38,988,973.01x = 53,804,795.87 × 21,348,991.26 - Step 4: Simplify right side
38,988,973.01x = 1,148,678,116,828,086.75 - Step 5: Solve for x
x = 1,148,678,116,828,086.75/38,988,973.01 - Step 6: Final answer
x = 29,461,615.12
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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.