Finding the Fourth Proportional to 28,591,736.13, 39,456,900.63 and 15,538,995.99
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Solution
The fourth proportional to 28,591,736.13, 39,456,900.63 and 15,538,995.99 is: 21,443,980.10
Step by Step Solution
- Step 1: Write the proportion equation
28,591,736.13 : 39,456,900.63 = 15,538,995.99 : x - Step 2: Convert to fraction form
28,591,736.13/39,456,900.63 = 15,538,995.99/x - Step 3: Cross multiply
28,591,736.13x = 39,456,900.63 × 15,538,995.99 - Step 4: Simplify right side
28,591,736.13x = 613,120,620,667,398.50 - Step 5: Solve for x
x = 613,120,620,667,398.50/28,591,736.13 - Step 6: Final answer
x = 21,443,980.10
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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.