Finding the Fourth Proportional to 19,578,857.43, 29,224,569.96 and 18,135,995.13
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Solution
The fourth proportional to 19,578,857.43, 29,224,569.96 and 18,135,995.13 is: 27,070,867.66
Step by Step Solution
- Step 1: Write the proportion equation
19,578,857.43 : 29,224,569.96 = 18,135,995.13 : x - Step 2: Convert to fraction form
19,578,857.43/29,224,569.96 = 18,135,995.13/x - Step 3: Cross multiply
19,578,857.43x = 29,224,569.96 × 18,135,995.13 - Step 4: Simplify right side
19,578,857.43x = 530,016,658,470,904.25 - Step 5: Solve for x
x = 530,016,658,470,904.25/19,578,857.43 - Step 6: Final answer
x = 27,070,867.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.