Finding the Fourth Proportional to 38,487,399.14, 53,112,187.98 and 20,845,862.80
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Solution
The fourth proportional to 38,487,399.14, 53,112,187.98 and 20,845,862.80 is: 28,767,061.65
Step by Step Solution
- Step 1: Write the proportion equation
38,487,399.14 : 53,112,187.98 = 20,845,862.80 : x - Step 2: Convert to fraction form
38,487,399.14/53,112,187.98 = 20,845,862.80/x - Step 3: Cross multiply
38,487,399.14x = 53,112,187.98 × 20,845,862.80 - Step 4: Simplify right side
38,487,399.14x = 1,107,169,383,638,889.12 - Step 5: Solve for x
x = 1,107,169,383,638,889.12/38,487,399.14 - Step 6: Final answer
x = 28,767,061.65
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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.